101220036 has 48 divisors (see below), whose sum is σ = 242331264. Its totient is φ = 32870656.

The previous prime is 101220013. The next prime is 101220037. The reversal of 101220036 is 630022101.

101220036 is nontrivially palindromic in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 101219997 and 101220024.

It is not an unprimeable number, because it can be changed into a prime (101220037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105736 + ... + 106688.

It is an arithmetic number, because the mean of its divisors is an integer number (5048568).

Almost surely, 2^101220036 is an apocalyptic number.

It is an amenable number.

101220036 is an abundant number, since it is smaller than the sum of its proper divisors (141111228).

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

101220036 is a wasteful number, since it uses less digits than its factorization.

101220036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 101220036 is about 10060.8168654439. The cubic root of 101220036 is about 466.0388935223.

Adding to 101220036 its reverse (630022101), we get a palindrome (731242137).

The spelling of 101220036 in words is "one hundred one million, two hundred twenty thousand, thirty-six".