12122221111050 has 48 divisors (see below), whose sum is σ = 30063332823552. Its totient is φ = 3232568160000.

The previous prime is 12122221111031. The next prime is 12122221111069. The reversal of 12122221111050 is 5011112222121.

12122221111050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12122221111031) and next prime (12122221111069).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29897175 + ... + 30299925.

It is an arithmetic number, because the mean of its divisors is an integer number (626319433824).

Almost surely, 2^{12122221111050} is an apocalyptic number.

12122221111050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122221111050 is an abundant number, since it is smaller than the sum of its proper divisors (17941111712502).

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

12122221111050 is a wasteful number, since it uses less digits than its factorization.

12122221111050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603423 (or 603418 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 12122221111050 its reverse (5011112222121), we get a palindrome (17133333333171).

The spelling of 12122221111050 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred eleven thousand, fifty".