21331133202202 has 16 divisors (see below), whose sum is σ = 33880525259112. Its totient is φ = 10037686510080.

The previous prime is 21331133202179. The next prime is 21331133202221. The reversal of 21331133202202 is 20220233113312.

It can be written as a sum of positive squares in 4 ways, for example, as 18606187353121 + 2724945849081 = 4313489^2 + 1650741^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14730123 + ... + 16113310.

Almost surely, 2^{21331133202202} is an apocalyptic number.

21331133202202 is a deficient number, since it is larger than the sum of its proper divisors (12549392056910).

21331133202202 is a wasteful number, since it uses less digits than its factorization.

21331133202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30863793.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21331133202202 its reverse (20220233113312), we get a palindrome (41551366315514).

The spelling of 21331133202202 in words is "twenty-one trillion, three hundred thirty-one billion, one hundred thirty-three million, two hundred two thousand, two hundred two".