12122001012 has 48 divisors (see below), whose sum is σ = 31161541824. Its totient is φ = 3636960000.

The previous prime is 12122000951. The next prime is 12122001049. The reversal of 12122001012 is 21010022121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 441289 + ... + 467952.

It is an arithmetic number, because the mean of its divisors is an integer number (649198788).

Almost surely, 2^12122001012 is an apocalyptic number.

12122001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122001012 is an abundant number, since it is smaller than the sum of its proper divisors (19039540812).

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

12122001012 is a wasteful number, since it uses less digits than its factorization.

12122001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909360 (or 909358 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12122001012 its reverse (21010022121), we get a palindrome (33132023133).

The spelling of 12122001012 in words is "twelve billion, one hundred twenty-two million, one thousand, twelve".