123212012 has 48 divisors (see below), whose sum is σ = 280530432. Its totient is φ = 45914880.

The previous prime is 123211997. The next prime is 123212027. The reversal of 123212012 is 210212321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123211997) and next prime (123212027).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613 + ... + 15780.

It is an arithmetic number, because the mean of its divisors is an integer number (5844384).

Almost surely, 2^123212012 is an apocalyptic number.

It is an amenable number.

123212012 is an abundant number, since it is smaller than the sum of its proper divisors (157318420).

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

123212012 is a wasteful number, since it uses less digits than its factorization.

123212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17438 (or 17436 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 123212012 is about 11100.0906302606. The cubic root of 123212012 is about 497.6045580428.

Adding to 123212012 its reverse (210212321), we get a palindrome (333424333).

The spelling of 123212012 in words is "one hundred twenty-three million, two hundred twelve thousand, twelve".