101220204 has 24 divisors (see below), whose sum is σ = 237504960. Its totient is φ = 33550864.

The previous prime is 101220169. The next prime is 101220233. The reversal of 101220204 is 402022101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 101220204.

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, 21414 + ... + 25709.

It is an arithmetic number, because the mean of its divisors is an integer number (9896040).

Almost surely, 2^101220204 is an apocalyptic number.

It is an amenable number.

101220204 is an abundant number, since it is smaller than the sum of its proper divisors (136284756).

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

101220204 is a wasteful number, since it uses less digits than its factorization.

101220204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47309 (or 47307 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 101220204 is about 10060.8252146631. The cubic root of 101220204 is about 466.0391513582.

Adding to 101220204 its reverse (402022101), we get a palindrome (503242305).

The spelling of 101220204 in words is "one hundred one million, two hundred twenty thousand, two hundred four".