21031020002201 has 32 divisors (see below), whose sum is σ = 24205464576000. Its totient is φ = 18097359984000.

The previous prime is 21031020002183. The next prime is 21031020002219. The reversal of 21031020002201 is 10220002013012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21031020002183) and next prime (21031020002219).

It is not a de Polignac number, because 21031020002201 - 2⁶ = 21031020002137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21031020002261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1377221 + ... + 6630141.

It is an arithmetic number, because the mean of its divisors is an integer number (756420768000).

Almost surely, 2^{21031020002201} is an apocalyptic number.

It is an amenable number.

21031020002201 is a deficient number, since it is larger than the sum of its proper divisors (3174444573799).

21031020002201 is a wasteful number, since it uses less digits than its factorization.

21031020002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253221.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21031020002201 its reverse (10220002013012), we get a palindrome (31251022015213).

The spelling of 21031020002201 in words is "twenty-one trillion, thirty-one billion, twenty million, two thousand, two hundred one".