111022120961 has 2 divisors, whose sum is σ = 111022120962. Its totient is φ = 111022120960.

The previous prime is 111022120939. The next prime is 111022121003. The reversal of 111022120961 is 169021220111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110985591025 + 36529936 = 333145^2 + 6044^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022120961 - 2¹⁰ = 111022119937 is a prime.

It is a super-2 number, since 2×111022120961² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111022120961.

It is not a weakly prime, because it can be changed into another prime (111022120901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511060480 + 55511060481.

It is an arithmetic number, because the mean of its divisors is an integer number (55511060481).

Almost surely, 2^111022120961 is an apocalyptic number.

It is an amenable number.

111022120961 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022120961 is an equidigital number, since it uses as much as digits as its factorization.

111022120961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 111022120961 in words is "one hundred eleven billion, twenty-two million, one hundred twenty thousand, nine hundred sixty-one".