22001310121 has 24 divisors (see below), whose sum is σ = 27503382816. Its totient is φ = 17484001920.

The previous prime is 22001310109. The next prime is 22001310137. The reversal of 22001310121 is 12101310022.

It is not a de Polignac number, because 22001310121 - 2¹⁷ = 22001179049 is a prime.

It is a super-3 number, since 3×22001310121³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22001313121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141295 + ... + 252916.

It is an arithmetic number, because the mean of its divisors is an integer number (1145974284).

Almost surely, 2^22001310121 is an apocalyptic number.

It is an amenable number.

22001310121 is a deficient number, since it is larger than the sum of its proper divisors (5502072695).

22001310121 is a wasteful number, since it uses less digits than its factorization.

22001310121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394309 (or 394302 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22001310121 its reverse (12101310022), we get a palindrome (34102620143).

Subtracting from 22001310121 its reverse (12101310022), we obtain a palindrome (9900000099).

The spelling of 22001310121 in words is "twenty-two billion, one million, three hundred ten thousand, one hundred twenty-one".