2221011300021 has 16 divisors (see below), whose sum is σ = 3041437073664. Its totient is φ = 1440631237824.

The previous prime is 2221011299999. The next prime is 2221011300049. The reversal of 2221011300021 is 1200031101222.

It is not a de Polignac number, because 2221011300021 - 2⁶ = 2221011299957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221011300421) 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, 8111860 + ... + 8381186.

It is an arithmetic number, because the mean of its divisors is an integer number (190089817104).

Almost surely, 2^{2221011300021} is an apocalyptic number.

It is an amenable number.

2221011300021 is a deficient number, since it is larger than the sum of its proper divisors (820425773643).

2221011300021 is a wasteful number, since it uses less digits than its factorization.

2221011300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343660.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2221011300021 its reverse (1200031101222), we get a palindrome (3421042401243).

The spelling of 2221011300021 in words is "two trillion, two hundred twenty-one billion, eleven million, three hundred thousand, twenty-one".