202021132212113 has 8 divisors (see below), whose sum is σ = 202053866471400. Its totient is φ = 201988400544000.

The previous prime is 202021132212103. The next prime is 202021132212127. The reversal of 202021132212113 is 311212231120202.

It can be written as a sum of positive squares in 4 ways, for example, as 86224744489984 + 115796387722129 = 9285728^2 + 10760873^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202021132212113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202021132212103) 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, 158444681 + ... + 159714617.

It is an arithmetic number, because the mean of its divisors is an integer number (25256733308925).

Almost surely, 2^{202021132212113} is an apocalyptic number.

It is an amenable number.

202021132212113 is a deficient number, since it is larger than the sum of its proper divisors (32734259287).

202021132212113 is a wasteful number, since it uses less digits than its factorization.

202021132212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295587.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 202021132212113 its reverse (311212231120202), we get a palindrome (513233363332315).

The spelling of 202021132212113 in words is "two hundred two trillion, twenty-one billion, one hundred thirty-two million, two hundred twelve thousand, one hundred thirteen".