72122110112111 has 2 divisors, whose sum is σ = 72122110112112. Its totient is φ = 72122110112110.

The previous prime is 72122110112083. The next prime is 72122110112197. The reversal of 72122110112111 is 11121101122127.

It is a weak prime.

It is an emirp because it is prime and its reverse (11121101122127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72122110112111 - 2¹⁸ = 72122109849967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72122110112411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36061055056055 + 36061055056056.

It is an arithmetic number, because the mean of its divisors is an integer number (36061055056056).

Almost surely, 2^{72122110112111} is an apocalyptic number.

72122110112111 is a deficient number, since it is larger than the sum of its proper divisors (1).

72122110112111 is an equidigital number, since it uses as much as digits as its factorization.

72122110112111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 23.

Adding to 72122110112111 its reverse (11121101122127), we get a palindrome (83243211234238).

The spelling of 72122110112111 in words is "seventy-two trillion, one hundred twenty-two billion, one hundred ten million, one hundred twelve thousand, one hundred eleven".