122112021089 has 2 divisors, whose sum is σ = 122112021090. Its totient is φ = 122112021088.

The previous prime is 122112021047. The next prime is 122112021127. The reversal of 122112021089 is 980120211221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82373592064 + 39738429025 = 287008^2 + 199345^2 .

It is a cyclic number.

It is not a de Polignac number, because 122112021089 - 2¹² = 122112016993 is a prime.

It is a super-2 number, since 2×122112021089² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122112029089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61056010544 + 61056010545.

It is an arithmetic number, because the mean of its divisors is an integer number (61056010545).

Almost surely, 2^122112021089 is an apocalyptic number.

It is an amenable number.

122112021089 is a deficient number, since it is larger than the sum of its proper divisors (1).

122112021089 is an equidigital number, since it uses as much as digits as its factorization.

122112021089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 122112021089 in words is "one hundred twenty-two billion, one hundred twelve million, twenty-one thousand, eighty-nine".