101235220 has 12 divisors (see below), whose sum is σ = 212594004. Its totient is φ = 40494080.

The previous prime is 101235217. The next prime is 101235223. The reversal of 101235220 is 22532101.

It is an interprime number because it is at equal distance from previous prime (101235217) and next prime (101235223).

It can be written as a sum of positive squares in 2 ways, for example, as 11478544 + 89756676 = 3388^2 + 9474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101235194 and 101235203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101235223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530861 + ... + 2530900.

It is an arithmetic number, because the mean of its divisors is an integer number (17716167).

Almost surely, 2^101235220 is an apocalyptic number.

101235220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101235220 is an abundant number, since it is smaller than the sum of its proper divisors (111358784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101235220 is a wasteful number, since it uses less digits than its factorization.

101235220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061770 (or 5061768 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 101235220 is about 10061.5714478405. The cubic root of 101235220 is about 466.0621958283.

Adding to 101235220 its reverse (22532101), we get a palindrome (123767321).

The spelling of 101235220 in words is "one hundred one million, two hundred thirty-five thousand, two hundred twenty".