22112333220881 has 2 divisors, whose sum is σ = 22112333220882. Its totient is φ = 22112333220880.

The previous prime is 22112333220863. The next prime is 22112333220959. The reversal of 22112333220881 is 18802233321122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20942887795600 + 1169445425281 = 4576340^2 + 1081409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22112333220881 is a prime.

It is a super-2 number, since 2×22112333220881² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22112333223881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056166610440 + 11056166610441.

It is an arithmetic number, because the mean of its divisors is an integer number (11056166610441).

Almost surely, 2^{22112333220881} is an apocalyptic number.

It is an amenable number.

22112333220881 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112333220881 is an equidigital number, since it uses as much as digits as its factorization.

22112333220881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 22112333220881 in words is "twenty-two trillion, one hundred twelve billion, three hundred thirty-three million, two hundred twenty thousand, eight hundred eighty-one".