22101012010121 has 4 divisors (see below), whose sum is σ = 24110194920144. Its totient is φ = 20091829100100.

The previous prime is 22101012010079. The next prime is 22101012010127. The reversal of 22101012010121 is 12101021010122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22101012010121 - 2³⁰ = 22099938268297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101012010096 and 22101012010105.

It is not an unprimeable number, because it can be changed into a prime (22101012010127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1004591454995 + ... + 1004591455016.

It is an arithmetic number, because the mean of its divisors is an integer number (6027548730036).

Almost surely, 2^{22101012010121} is an apocalyptic number.

It is an amenable number.

22101012010121 is a deficient number, since it is larger than the sum of its proper divisors (2009182910023).

22101012010121 is a wasteful number, since it uses less digits than its factorization.

22101012010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009182910022.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22101012010121 its reverse (12101021010122), we get a palindrome (34202033020243).

Subtracting from 22101012010121 its reverse (12101021010122), we obtain a palindrome (9999990999999).

The spelling of 22101012010121 in words is "twenty-two trillion, one hundred one billion, twelve million, ten thousand, one hundred twenty-one".