102012121220212 has 24 divisors (see below), whose sum is σ = 207069380391104. Its totient is φ = 43066950962112.

The previous prime is 102012121220197. The next prime is 102012121220231. The reversal of 102012121220212 is 212022121210201.

It is a self number, because there is not a number n which added to its sum of digits gives 102012121220212.

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, 27188729793 + ... + 27188733544.

Almost surely, 2^{102012121220212} is an apocalyptic number.

It is an amenable number.

102012121220212 is an abundant number, since it is smaller than the sum of its proper divisors (105057259170892).

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

102012121220212 is a wasteful number, since it uses less digits than its factorization.

102012121220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54377463415 (or 54377463413 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102012121220212 its reverse (212022121210201), we get a palindrome (314034242430413).

The spelling of 102012121220212 in words is "one hundred two trillion, twelve billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twelve".