22121332202131 has 2 divisors, whose sum is σ = 22121332202132. Its totient is φ = 22121332202130.

The previous prime is 22121332202107. The next prime is 22121332202173. The reversal of 22121332202131 is 13120223312122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121332202131 is a prime.

It is a super-2 number, since 2×22121332202131² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22121332202096 and 22121332202105.

It is not a weakly prime, because it can be changed into another prime (22121332209131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060666101065 + 11060666101066.

It is an arithmetic number, because the mean of its divisors is an integer number (11060666101066).

Almost surely, 2^{22121332202131} is an apocalyptic number.

22121332202131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121332202131 is an equidigital number, since it uses as much as digits as its factorization.

22121332202131 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 25.

Adding to 22121332202131 its reverse (13120223312122), we get a palindrome (35241555514253).

The spelling of 22121332202131 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred thirty-two million, two hundred two thousand, one hundred thirty-one".