102412220 has 24 divisors (see below), whose sum is σ = 222004608. Its totient is φ = 39643200.

The previous prime is 102412213. The next prime is 102412237. The reversal of 102412220 is 22214201.

It is a junction number, because it is equal to n+sod(n) for n = 102412195 and 102412204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81971 + ... + 83210.

It is an arithmetic number, because the mean of its divisors is an integer number (9250192).

Almost surely, 2^102412220 is an apocalyptic number.

102412220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102412220 is an abundant number, since it is smaller than the sum of its proper divisors (119592388).

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

102412220 is a wasteful number, since it uses less digits than its factorization.

102412220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165221 (or 165219 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 102412220 is about 10119.8922919169. The cubic root of 102412220 is about 467.8614475284.

Adding to 102412220 its reverse (22214201), we get a palindrome (124626421).

The spelling of 102412220 in words is "one hundred two million, four hundred twelve thousand, two hundred twenty".