102210121111212 has 60 divisors (see below), whose sum is σ = 267200042460120. Its totient is φ = 34069709329344.

The previous prime is 102210121111199. The next prime is 102210121111243. The reversal of 102210121111212 is 212111121012201.

It is a happy number.

102210121111212 is a `hidden beast` number, since 1 + 0 + 221 + 0 + 121 + 111 + 212 = 666.

It is a super-3 number, since 3×102210121111212³ (a number of 43 digits) contains 333 as substring.

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 19 ways as a sum of consecutive naturals, for example, 33067864 + ... + 36026432.

It is an arithmetic number, because the mean of its divisors is an integer number (4453334041002).

Almost surely, 2^{102210121111212} is an apocalyptic number.

102210121111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102210121111212 is an abundant number, since it is smaller than the sum of its proper divisors (164989921348908).

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

102210121111212 is a wasteful number, since it uses less digits than its factorization.

102210121111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065212 (or 3065201 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 102210121111212 its reverse (212111121012201), we get a palindrome (314321242123413).

The spelling of 102210121111212 in words is "one hundred two trillion, two hundred ten billion, one hundred twenty-one million, one hundred eleven thousand, two hundred twelve".