212333122012 has 12 divisors (see below), whose sum is σ = 405363233016. Its totient is φ = 96515055440.

The previous prime is 212333122003. The next prime is 212333122021. The reversal of 212333122012 is 210221333212.

It is an interprime number because it is at equal distance from previous prime (212333122003) and next prime (212333122021).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2412876343 + ... + 2412876430.

It is an arithmetic number, because the mean of its divisors is an integer number (33780269418).

Almost surely, 2^212333122012 is an apocalyptic number.

212333122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212333122012 is a deficient number, since it is larger than the sum of its proper divisors (193030111004).

212333122012 is a wasteful number, since it uses less digits than its factorization.

212333122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4825752788 (or 4825752786 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212333122012 its reverse (210221333212), we get a palindrome (422554455224).

The spelling of 212333122012 in words is "two hundred twelve billion, three hundred thirty-three million, one hundred twenty-two thousand, twelve".