22121010313 has 8 divisors (see below), whose sum is σ = 22219504200. Its totient is φ = 22022732160.

The previous prime is 22121010251. The next prime is 22121010323. The reversal of 22121010313 is 31301012122.

It can be written as a sum of positive squares in 4 ways, for example, as 3243074704 + 18877935609 = 56948^2 + 137397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22121010313 - 2¹³ = 22121002121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121010323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153363 + ... + 260311.

It is an arithmetic number, because the mean of its divisors is an integer number (2777438025).

Almost surely, 2^22121010313 is an apocalyptic number.

It is an amenable number.

22121010313 is a deficient number, since it is larger than the sum of its proper divisors (98493887).

22121010313 is a wasteful number, since it uses less digits than its factorization.

22121010313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107867.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22121010313 its reverse (31301012122), we get a palindrome (53422022435).

The spelling of 22121010313 in words is "twenty-two billion, one hundred twenty-one million, ten thousand, three hundred thirteen".