22101012222121 has 8 divisors (see below), whose sum is σ = 25260218673984. Its totient is φ = 18942285518160.

The previous prime is 22101012222053. The next prime is 22101012222137. The reversal of 22101012222121 is 12122221010122.

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 22101012222121 - 2⁹ = 22101012221609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22101012222181) 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, 119838250 + ... + 120022531.

It is an arithmetic number, because the mean of its divisors is an integer number (3157527334248).

Almost surely, 2^{22101012222121} is an apocalyptic number.

It is an amenable number.

22101012222121 is a deficient number, since it is larger than the sum of its proper divisors (3159206451863).

22101012222121 is a wasteful number, since it uses less digits than its factorization.

22101012222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239873951.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22101012222121 its reverse (12122221010122), we get a palindrome (34223233232243).

The spelling of 22101012222121 in words is "twenty-two trillion, one hundred one billion, twelve million, two hundred twenty-two thousand, one hundred twenty-one".