22222212109973 has 2 divisors, whose sum is σ = 22222212109974. Its totient is φ = 22222212109972.

The previous prime is 22222212109967. The next prime is 22222212110039. The reversal of 22222212109973 is 37990121222222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12463879498084 + 9758332611889 = 3530422^2 + 3123833^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22222212109973 is a prime.

It is a super-2 number, since 2×22222212109973² (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 (22222212109913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111106054986 + 11111106054987.

It is an arithmetic number, because the mean of its divisors is an integer number (11111106054987).

Almost surely, 2^{22222212109973} is an apocalyptic number.

It is an amenable number.

22222212109973 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222212109973 is an equidigital number, since it uses as much as digits as its factorization.

22222212109973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 22222212109973 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twelve million, one hundred nine thousand, nine hundred seventy-three".