22221211009973 has 2 divisors, whose sum is σ = 22221211009974. Its totient is φ = 22221211009972.

The previous prime is 22221211009969. The next prime is 22221211010081. The reversal of 22221211009973 is 37990011212222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20126412145009 + 2094798864964 = 4486247^2 + 1447342^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221211009973 - 2² = 22221211009969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22221211009973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221211009903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110605504986 + 11110605504987.

It is an arithmetic number, because the mean of its divisors is an integer number (11110605504987).

Almost surely, 2^{22221211009973} is an apocalyptic number.

It is an amenable number.

22221211009973 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221211009973 is an equidigital number, since it uses as much as digits as its factorization.

22221211009973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 22221211009973 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred eleven million, nine thousand, nine hundred seventy-three".