111021002219957 has 2 divisors, whose sum is σ = 111021002219958. Its totient is φ = 111021002219956.

The previous prime is 111021002219923. The next prime is 111021002220001. The reversal of 111021002219957 is 759912200120111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62760207113956 + 48260795106001 = 7922134^2 + 6946999^2 .

It is a cyclic number.

It is not a de Polignac number, because 111021002219957 - 2²⁸ = 111020733784501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111021002212957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510501109978 + 55510501109979.

It is an arithmetic number, because the mean of its divisors is an integer number (55510501109979).

Almost surely, 2^{111021002219957} is an apocalyptic number.

It is an amenable number.

111021002219957 is a deficient number, since it is larger than the sum of its proper divisors (1).

111021002219957 is an equidigital number, since it uses as much as digits as its factorization.

111021002219957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 41.

The spelling of 111021002219957 in words is "one hundred eleven trillion, twenty-one billion, two million, two hundred nineteen thousand, nine hundred fifty-seven".