21132202203001 has 12 divisors (see below), whose sum is σ = 22304097946452. Its totient is φ = 20018960763264.

The previous prime is 21132202202933. The next prime is 21132202203041. The reversal of 21132202203001 is 10030220223112.

It can be written as a sum of positive squares in 2 ways, for example, as 4179260616976 + 16952941586025 = 2044324^2 + 4117395^2 .

It is not a de Polignac number, because 21132202203001 - 2⁷ = 21132202202873 is a prime.

It is a super-2 number, since 2×21132202203001² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21132202203001.

It is not an unprimeable number, because it can be changed into a prime (21132202203041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5649085 + ... + 8612581.

It is an arithmetic number, because the mean of its divisors is an integer number (1858674828871).

Almost surely, 2^{21132202203001} is an apocalyptic number.

It is an amenable number.

21132202203001 is a deficient number, since it is larger than the sum of its proper divisors (1171895743451).

21132202203001 is a wasteful number, since it uses less digits than its factorization.

21132202203001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983288 (or 2983269 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21132202203001 its reverse (10030220223112), we get a palindrome (31162422426113).

The spelling of 21132202203001 in words is "twenty-one trillion, one hundred thirty-two billion, two hundred two million, two hundred three thousand, one".