121213102312212 has 12 divisors (see below), whose sum is σ = 282830572061856. Its totient is φ = 40404367437400.

The previous prime is 121213102312207. The next prime is 121213102312217. The reversal of 121213102312212 is 212213201312121.

It is an interprime number because it is at equal distance from previous prime (121213102312207) and next prime (121213102312217).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213102312217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050545929664 + ... + 5050545929687.

It is an arithmetic number, because the mean of its divisors is an integer number (23569214338488).

Almost surely, 2^{121213102312212} is an apocalyptic number.

121213102312212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121213102312212 is an abundant number, since it is smaller than the sum of its proper divisors (161617469749644).

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

121213102312212 is a wasteful number, since it uses less digits than its factorization.

121213102312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101091859358 (or 10101091859356 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 121213102312212 its reverse (212213201312121), we get a palindrome (333426303624333).

The spelling of 121213102312212 in words is "one hundred twenty-one trillion, two hundred thirteen billion, one hundred two million, three hundred twelve thousand, two hundred twelve".