22121120313 has 6 divisors (see below), whose sum is σ = 31952729354. Its totient is φ = 14747413536.

The previous prime is 22121120311. The next prime is 22121120317. The reversal of 22121120313 is 31302112122.

It can be written as a sum of positive squares in only one way, i.e., 17158904064 + 4962216249 = 130992^2 + 70443^2 .

It is not a de Polignac number, because 22121120313 - 2¹ = 22121120311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121120311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1228951120 + ... + 1228951137.

Almost surely, 2^22121120313 is an apocalyptic number.

It is an amenable number.

22121120313 is a deficient number, since it is larger than the sum of its proper divisors (9831609041).

22121120313 is a wasteful number, since it uses less digits than its factorization.

22121120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457902263 (or 2457902260 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22121120313 its reverse (31302112122), we get a palindrome (53423232435).

The spelling of 22121120313 in words is "twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, three hundred thirteen".