102121212011022 has 24 divisors (see below), whose sum is σ = 221265348313464. Its totient is φ = 34039985189904.

The previous prime is 102121212011017. The next prime is 102121212011053. The reversal of 102121212011022 is 220110212121201.

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

It is a junction number, because it is equal to n+sod(n) for n = 102121212010986 and 102121212011004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33395748 + ... + 36325175.

It is an arithmetic number, because the mean of its divisors is an integer number (9219389513061).

Almost surely, 2^{102121212011022} is an apocalyptic number.

102121212011022 is an abundant number, since it is smaller than the sum of its proper divisors (119144136302442).

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

102121212011022 is a wasteful number, since it uses less digits than its factorization.

102121212011022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69802304 (or 69802301 counting only the distinct ones).

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

Adding to 102121212011022 its reverse (220110212121201), we get a palindrome (322231424132223).

The spelling of 102121212011022 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twelve million, eleven thousand, twenty-two".