21202010002201 has 24 divisors (see below), whose sum is σ = 25925238234560. Its totient is φ = 16981090912512.

The previous prime is 21202010002189. The next prime is 21202010002267. The reversal of 21202010002201 is 10220001020212.

It is a happy number.

It is not a de Polignac number, because 21202010002201 - 2³⁵ = 21167650263833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21202010002501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37418370 + ... + 37980763.

Almost surely, 2^{21202010002201} is an apocalyptic number.

It is an amenable number.

21202010002201 is a deficient number, since it is larger than the sum of its proper divisors (4723228232359).

21202010002201 is a wasteful number, since it uses less digits than its factorization.

21202010002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75399313 (or 75399296 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21202010002201 its reverse (10220001020212), we get a palindrome (31422011022413).

The spelling of 21202010002201 in words is "twenty-one trillion, two hundred two billion, ten million, two thousand, two hundred one".