20221010121 has 32 divisors (see below), whose sum is σ = 29597436288. Its totient is φ = 12205094400.

The previous prime is 20221010101. The next prime is 20221010137. The reversal of 20221010121 is 12101012202.

It is not a de Polignac number, because 20221010121 - 2¹⁰ = 20221009097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20221010097 and 20221010106.

It is not an unprimeable number, because it can be changed into a prime (20221010101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397485 + ... + 445461.

It is an arithmetic number, because the mean of its divisors is an integer number (924919884).

Almost surely, 2^20221010121 is an apocalyptic number.

It is an amenable number.

20221010121 is a deficient number, since it is larger than the sum of its proper divisors (9376426167).

20221010121 is a wasteful number, since it uses less digits than its factorization.

20221010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48201.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20221010121 its reverse (12101012202), we get a palindrome (32322022323).

The spelling of 20221010121 in words is "twenty billion, two hundred twenty-one million, ten thousand, one hundred twenty-one".