102001021204 has 12 divisors (see below), whose sum is σ = 180170028864. Its totient is φ = 50523870104.

The previous prime is 102001021141. The next prime is 102001021249. The reversal of 102001021204 is 402120100201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119159644 + ... + 119160499.

It is an arithmetic number, because the mean of its divisors is an integer number (15014169072).

Almost surely, 2^102001021204 is an apocalyptic number.

It is an amenable number.

102001021204 is a deficient number, since it is larger than the sum of its proper divisors (78169007660).

102001021204 is a wasteful number, since it uses less digits than its factorization.

102001021204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238320254 (or 238320252 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102001021204 its reverse (402120100201), we get a palindrome (504121121405).

The spelling of 102001021204 in words is "one hundred two billion, one million, twenty-one thousand, two hundred four".