2221121021133 has 16 divisors (see below), whose sum is σ = 3385620178560. Its totient is φ = 1268816457216.

The previous prime is 2221121021057. The next prime is 2221121021299. The reversal of 2221121021133 is 3311201211222.

It is not a de Polignac number, because 2221121021133 - 2²² = 2221116826829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221121023133) 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, 16412460 + ... + 16547237.

It is an arithmetic number, because the mean of its divisors is an integer number (211601261160).

Almost surely, 2^{2221121021133} is an apocalyptic number.

It is an amenable number.

2221121021133 is a deficient number, since it is larger than the sum of its proper divisors (1164499157427).

2221121021133 is a wasteful number, since it uses less digits than its factorization.

2221121021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32962916.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2221121021133 its reverse (3311201211222), we get a palindrome (5532322232355).

The spelling of 2221121021133 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty-one thousand, one hundred thirty-three".