111912021167 has 2 divisors, whose sum is σ = 111912021168. Its totient is φ = 111912021166.

The previous prime is 111912021101. The next prime is 111912021211. The reversal of 111912021167 is 761120219111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111912021167 - 2¹⁸ = 111911759023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111912021367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55956010583 + 55956010584.

It is an arithmetic number, because the mean of its divisors is an integer number (55956010584).

Almost surely, 2^111912021167 is an apocalyptic number.

111912021167 is a deficient number, since it is larger than the sum of its proper divisors (1).

111912021167 is an equidigital number, since it uses as much as digits as its factorization.

111912021167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 32.

The spelling of 111912021167 in words is "one hundred eleven billion, nine hundred twelve million, twenty-one thousand, one hundred sixty-seven".