202112221013 has 8 divisors (see below), whose sum is σ = 203169141336. Its totient is φ = 201057696000.

The previous prime is 202112221007. The next prime is 202112221027. The reversal of 202112221013 is 310122211202.

It can be written as a sum of positive squares in 4 ways, for example, as 104369701969 + 97742519044 = 323063^2 + 312638^2 .

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 202112221013 - 2²² = 202108026709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202112220982 and 202112221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112223013) 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, 429506 + ... + 767267.

It is an arithmetic number, because the mean of its divisors is an integer number (25396142667).

Almost surely, 2^202112221013 is an apocalyptic number.

It is an amenable number.

202112221013 is a deficient number, since it is larger than the sum of its proper divisors (1056920323).

202112221013 is a wasteful number, since it uses less digits than its factorization.

202112221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197655.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 202112221013 its reverse (310122211202), we get a palindrome (512234432215).

The spelling of 202112221013 in words is "two hundred two billion, one hundred twelve million, two hundred twenty-one thousand, thirteen".