102102021012212 has 48 divisors (see below), whose sum is σ = 193962715914240. Its totient is φ = 46747039997952.

The previous prime is 102102021012169. The next prime is 102102021012283. The reversal of 102102021012212 is 212210120201201.

It is a super-2 number, since 2×102102021012212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51441989 + ... + 53389907.

It is an arithmetic number, because the mean of its divisors is an integer number (4040889914880).

Almost surely, 2^{102102021012212} is an apocalyptic number.

It is an amenable number.

102102021012212 is a deficient number, since it is larger than the sum of its proper divisors (91860694902028).

102102021012212 is a wasteful number, since it uses less digits than its factorization.

102102021012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956000 (or 1955998 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102102021012212 its reverse (212210120201201), we get a palindrome (314312141213413).

The spelling of 102102021012212 in words is "one hundred two trillion, one hundred two billion, twenty-one million, twelve thousand, two hundred twelve".