201211022103231 has 16 divisors (see below), whose sum is σ = 306820341504000. Its totient is φ = 114897825768288.

The previous prime is 201211022103229. The next prime is 201211022103241. The reversal of 201211022103231 is 132301220112102.

It is not a de Polignac number, because 201211022103231 - 2¹ = 201211022103229 is a prime.

It is a super-2 number, since 2×201211022103231² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 201211022103198 and 201211022103207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211022103211) 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, 3329183556 + ... + 3329243993.

It is an arithmetic number, because the mean of its divisors is an integer number (19176271344000).

Almost surely, 2^{201211022103231} is an apocalyptic number.

201211022103231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201211022103231 is a deficient number, since it is larger than the sum of its proper divisors (105609319400769).

201211022103231 is a wasteful number, since it uses less digits than its factorization.

201211022103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6658428998.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 201211022103231 its reverse (132301220112102), we get a palindrome (333512242215333).

The spelling of 201211022103231 in words is "two hundred one trillion, two hundred eleven billion, twenty-two million, one hundred three thousand, two hundred thirty-one".