22333212400981 has 2 divisors, whose sum is σ = 22333212400982. Its totient is φ = 22333212400980.

The previous prime is 22333212400937. The next prime is 22333212401009. The reversal of 22333212400981 is 18900421233322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14722185302500 + 7611027098481 = 3836950^2 + 2758809^2 .

It is a cyclic number.

It is not a de Polignac number, because 22333212400981 - 2²¹ = 22333210303829 is a prime.

It is a super-2 number, since 2×22333212400981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22333212400181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11166606200490 + 11166606200491.

It is an arithmetic number, because the mean of its divisors is an integer number (11166606200491).

Almost surely, 2^{22333212400981} is an apocalyptic number.

It is an amenable number.

22333212400981 is a deficient number, since it is larger than the sum of its proper divisors (1).

22333212400981 is an equidigital number, since it uses as much as digits as its factorization.

22333212400981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 22333212400981 in words is "twenty-two trillion, three hundred thirty-three billion, two hundred twelve million, four hundred thousand, nine hundred eighty-one".