11202012120021 has 16 divisors (see below), whose sum is σ = 15824508156864. Its totient is φ = 7024312237824.

The previous prime is 11202012119999. The next prime is 11202012120023. The reversal of 11202012120021 is 12002121020211.

It is not a de Polignac number, because 11202012120021 - 2¹⁸ = 11202011857877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202012120023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68687275 + ... + 68850168.

It is an arithmetic number, because the mean of its divisors is an integer number (989031759804).

Almost surely, 2^{11202012120021} is an apocalyptic number.

It is an amenable number.

11202012120021 is a deficient number, since it is larger than the sum of its proper divisors (4622496036843).

11202012120021 is a wasteful number, since it uses less digits than its factorization.

11202012120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137539060.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11202012120021 its reverse (12002121020211), we get a palindrome (23204133140232).

The spelling of 11202012120021 in words is "eleven trillion, two hundred two billion, twelve million, one hundred twenty thousand, twenty-one".