22001211981131 has 2 divisors, whose sum is σ = 22001211981132. Its totient is φ = 22001211981130.

The previous prime is 22001211981109. The next prime is 22001211981157. The reversal of 22001211981131 is 13118911210022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22001211981131 - 2²² = 22001207786827 is a prime.

It is a super-2 number, since 2×22001211981131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22001211989131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000605990565 + 11000605990566.

It is an arithmetic number, because the mean of its divisors is an integer number (11000605990566).

Almost surely, 2^{22001211981131} is an apocalyptic number.

22001211981131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001211981131 is an equidigital number, since it uses as much as digits as its factorization.

22001211981131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 32.

The spelling of 22001211981131 in words is "twenty-two trillion, one billion, two hundred eleven million, nine hundred eighty-one thousand, one hundred thirty-one".