112211101222021 has 2 divisors, whose sum is σ = 112211101222022. Its totient is φ = 112211101222020.

The previous prime is 112211101221949. The next prime is 112211101222027. The reversal of 112211101222021 is 120222101112211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65045660577921 + 47165440644100 = 8065089^2 + 6867710^2 .

It is a cyclic number.

It is not a de Polignac number, because 112211101222021 - 2³⁷ = 112073662268549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112211101222021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112211101222027) 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, 56105550611010 + 56105550611011.

It is an arithmetic number, because the mean of its divisors is an integer number (56105550611011).

Almost surely, 2^{112211101222021} is an apocalyptic number.

It is an amenable number.

112211101222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112211101222021 is an equidigital number, since it uses as much as digits as its factorization.

112211101222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 112211101222021 its reverse (120222101112211), we get a palindrome (232433202334232).

The spelling of 112211101222021 in words is "one hundred twelve trillion, two hundred eleven billion, one hundred one million, two hundred twenty-two thousand, twenty-one".