20112211100131 has 2 divisors, whose sum is σ = 20112211100132. Its totient is φ = 20112211100130.

The previous prime is 20112211100119. The next prime is 20112211100143. The reversal of 20112211100131 is 13100111221102.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20112211100119) and next prime (20112211100143).

It is a cyclic number.

It is not a de Polignac number, because 20112211100131 - 2²⁹ = 20111674229219 is a prime.

It is a super-2 number, since 2×20112211100131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20112211190131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056105550065 + 10056105550066.

It is an arithmetic number, because the mean of its divisors is an integer number (10056105550066).

Almost surely, 2^{20112211100131} is an apocalyptic number.

20112211100131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112211100131 is an equidigital number, since it uses as much as digits as its factorization.

20112211100131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 20112211100131 its reverse (13100111221102), we get a palindrome (33212322321233).

The spelling of 20112211100131 in words is "twenty trillion, one hundred twelve billion, two hundred eleven million, one hundred thousand, one hundred thirty-one".