102012211210212 has 72 divisors (see below), whose sum is σ = 267653022104832. Its totient is φ = 32725357300800.

The previous prime is 102012211210201. The next prime is 102012211210241. The reversal of 102012211210212 is 212012112210201.

102012211210212 is a `hidden beast` number, since 1 + 0 + 20 + 1 + 221 + 1 + 210 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252308478 + ... + 252712469.

Almost surely, 2^{102012211210212} is an apocalyptic number.

102012211210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102012211210212 is an abundant number, since it is smaller than the sum of its proper divisors (165640810894620).

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

102012211210212 is a wasteful number, since it uses less digits than its factorization.

102012211210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505021169 (or 505021164 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102012211210212 its reverse (212012112210201), we get a palindrome (314024323420413).

The spelling of 102012211210212 in words is "one hundred two trillion, twelve billion, two hundred eleven million, two hundred ten thousand, two hundred twelve".