22122222012121 has 16 divisors (see below), whose sum is σ = 27740379604608. Its totient is φ = 17138452896000.

The previous prime is 22122222012071. The next prime is 22122222012151. The reversal of 22122222012121 is 12121022222122.

It is a cyclic number.

It is not a de Polignac number, because 22122222012121 - 2¹¹ = 22122222010073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22122222012092 and 22122222012101.

It is not an unprimeable number, because it can be changed into a prime (22122222012151) 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, 830338080 + ... + 830364721.

It is an arithmetic number, because the mean of its divisors is an integer number (1733773725288).

Almost surely, 2^{22122222012121} is an apocalyptic number.

It is an amenable number.

22122222012121 is a deficient number, since it is larger than the sum of its proper divisors (5618157592487).

22122222012121 is a wasteful number, since it uses less digits than its factorization.

22122222012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660702992.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22122222012121 its reverse (12121022222122), we get a palindrome (34243244234243).

The spelling of 22122222012121 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty-two million, twelve thousand, one hundred twenty-one".