10221010121 has 16 divisors (see below), whose sum is σ = 11805139584. Its totient is φ = 8668149504.

The previous prime is 10221010109. The next prime is 10221010127. The reversal of 10221010121 is 12101012201.

It is not a de Polignac number, because 10221010121 - 2²⁶ = 10153901257 is a prime.

It is a super-3 number, since 3×10221010121³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (10221010127) 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, 453311 + ... + 475323.

It is an arithmetic number, because the mean of its divisors is an integer number (737821224).

Almost surely, 2^10221010121 is an apocalyptic number.

It is an amenable number.

10221010121 is a deficient number, since it is larger than the sum of its proper divisors (1584129463).

10221010121 is a wasteful number, since it uses less digits than its factorization.

10221010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22720.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10221010121 its reverse (12101012201), we get a palindrome (22322022322).

The spelling of 10221010121 in words is "ten billion, two hundred twenty-one million, ten thousand, one hundred twenty-one".