123002212111212 has 96 divisors (see below), whose sum is σ = 355771104353280. Its totient is φ = 32269487892480.

The previous prime is 123002212111211. The next prime is 123002212111243. The reversal of 123002212111212 is 212111212200321.

It is a super-2 number, since 2×123002212111212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (123002212111211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1050380512 + ... + 1050497607.

It is an arithmetic number, because the mean of its divisors is an integer number (3705949003680).

Almost surely, 2^{123002212111212} is an apocalyptic number.

123002212111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123002212111212 is an abundant number, since it is smaller than the sum of its proper divisors (232768892242068).

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

123002212111212 is a wasteful number, since it uses less digits than its factorization.

123002212111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100878191 (or 2100878189 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 123002212111212 its reverse (212111212200321), we get a palindrome (335113424311533).

The spelling of 123002212111212 in words is "one hundred twenty-three trillion, two billion, two hundred twelve million, one hundred eleven thousand, two hundred twelve".