12122220264 has 64 divisors (see below), whose sum is σ = 37783549440. Its totient is φ = 3148628160.

The previous prime is 12122220263. The next prime is 12122220359. The reversal of 12122220264 is 46202222121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12122220263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3277974 + ... + 3281669.

It is an arithmetic number, because the mean of its divisors is an integer number (590367960).

Almost surely, 2^12122220264 is an apocalyptic number.

12122220264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12122220264 is an abundant number, since it is smaller than the sum of its proper divisors (25661329176).

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

12122220264 is a wasteful number, since it uses less digits than its factorization.

12122220264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559670 (or 6559666 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12122220264 its reverse (46202222121), we get a palindrome (58324442385).

The spelling of 12122220264 in words is "twelve billion, one hundred twenty-two million, two hundred twenty thousand, two hundred sixty-four".