120122211997 has 2 divisors, whose sum is σ = 120122211998. Its totient is φ = 120122211996.

The previous prime is 120122211967. The next prime is 120122212019. The reversal of 120122211997 is 799112221021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77411376441 + 42710835556 = 278229^2 + 206666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120122211997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120122211907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60061105998 + 60061105999.

It is an arithmetic number, because the mean of its divisors is an integer number (60061105999).

Almost surely, 2^120122211997 is an apocalyptic number.

It is an amenable number.

120122211997 is a deficient number, since it is larger than the sum of its proper divisors (1).

120122211997 is an equidigital number, since it uses as much as digits as its factorization.

120122211997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 120122211997 in words is "one hundred twenty billion, one hundred twenty-two million, two hundred eleven thousand, nine hundred ninety-seven".