102212021998973 has 2 divisors, whose sum is σ = 102212021998974. Its totient is φ = 102212021998972.

The previous prime is 102212021998927. The next prime is 102212021998979. The reversal of 102212021998973 is 379899120212201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59740563556804 + 42471458442169 = 7729202^2 + 6517013^2 .

It is a cyclic number.

It is not a de Polignac number, because 102212021998973 - 2⁸ = 102212021998717 is a prime.

It is a super-2 number, since 2×102212021998973² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102212021998979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106010999486 + 51106010999487.

It is an arithmetic number, because the mean of its divisors is an integer number (51106010999487).

Almost surely, 2^{102212021998973} is an apocalyptic number.

It is an amenable number.

102212021998973 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212021998973 is an equidigital number, since it uses as much as digits as its factorization.

102212021998973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The spelling of 102212021998973 in words is "one hundred two trillion, two hundred twelve billion, twenty-one million, nine hundred ninety-eight thousand, nine hundred seventy-three".