12122112001021 has 8 divisors (see below), whose sum is σ = 13227788464704. Its totient is φ = 11017046584320.

The previous prime is 12122112001003. The next prime is 12122112001037. The reversal of 12122112001021 is 12010021122121.

12122112001021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12122112001021 - 2²⁵ = 12122078446589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12122112000986 and 12122112001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122112001121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152720260 + ... + 152799613.

It is an arithmetic number, because the mean of its divisors is an integer number (1653473558088).

Almost surely, 2^{12122112001021} is an apocalyptic number.

12122112001021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12122112001021 is a deficient number, since it is larger than the sum of its proper divisors (1105676463683).

12122112001021 is a wasteful number, since it uses less digits than its factorization.

12122112001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305523491.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12122112001021 its reverse (12010021122121), we get a palindrome (24132133123142).

The spelling of 12122112001021 in words is "twelve trillion, one hundred twenty-two billion, one hundred twelve million, one thousand, twenty-one".