211201022131 has 16 divisors (see below), whose sum is σ = 231950822400. Its totient is φ = 190712776320.

The previous prime is 211201022101. The next prime is 211201022171. The reversal of 211201022131 is 131220102112.

It is not a de Polignac number, because 211201022131 - 2⁵ = 211201022099 is a prime.

It is a super-2 number, since 2×211201022131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211201022101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216726 + ... + 1379428.

It is an arithmetic number, because the mean of its divisors is an integer number (14496926400).

Almost surely, 2^211201022131 is an apocalyptic number.

211201022131 is a deficient number, since it is larger than the sum of its proper divisors (20749800269).

211201022131 is a wasteful number, since it uses less digits than its factorization.

211201022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163506.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211201022131 its reverse (131220102112), we get a palindrome (342421124243).

The spelling of 211201022131 in words is "two hundred eleven billion, two hundred one million, twenty-two thousand, one hundred thirty-one".