21211202201 has 8 divisors (see below), whose sum is σ = 24261076224. Its totient is φ = 18166253760.

The previous prime is 21211202189. The next prime is 21211202219. The reversal of 21211202201 is 10220211212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21211202201 - 2²² = 21207007897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21211202231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222160 + ... + 1239393.

It is an arithmetic number, because the mean of its divisors is an integer number (3032634528).

Almost surely, 2^21211202201 is an apocalyptic number.

It is an amenable number.

21211202201 is a deficient number, since it is larger than the sum of its proper divisors (3049874023).

21211202201 is a wasteful number, since it uses less digits than its factorization.

21211202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462791.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21211202201 its reverse (10220211212), we get a palindrome (31431413413).

The spelling of 21211202201 in words is "twenty-one billion, two hundred eleven million, two hundred two thousand, two hundred one".