12122022012 has 24 divisors (see below), whose sum is σ = 28288705536. Its totient is φ = 4040104368.

The previous prime is 12122021987. The next prime is 12122022037. The reversal of 12122022012 is 21022022121.

It is an interprime number because it is at equal distance from previous prime (12122021987) and next prime (12122022037).

It is a junction number, because it is equal to n+sod(n) for n = 12122021982 and 12122022000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22383 + ... + 157305.

It is an arithmetic number, because the mean of its divisors is an integer number (1178696064).

Almost surely, 2^12122022012 is an apocalyptic number.

12122022012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122022012 is an abundant number, since it is smaller than the sum of its proper divisors (16166683524).

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

12122022012 is a wasteful number, since it uses less digits than its factorization.

12122022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142417 (or 142415 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12122022012 its reverse (21022022121), we get a palindrome (33144044133).

The spelling of 12122022012 in words is "twelve billion, one hundred twenty-two million, twenty-two thousand, twelve".