122765101 has 2 divisors, whose sum is σ = 122765102. Its totient is φ = 122765100.

The previous prime is 122765089. The next prime is 122765141. The reversal of 122765101 is 101567221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75168900 + 47596201 = 8670^2 + 6899^2 .

It is a cyclic number.

It is not a de Polignac number, because 122765101 - 2²¹ = 120667949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122765141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61382550 + 61382551.

It is an arithmetic number, because the mean of its divisors is an integer number (61382551).

Almost surely, 2^122765101 is an apocalyptic number.

It is an amenable number.

122765101 is a deficient number, since it is larger than the sum of its proper divisors (1).

122765101 is an equidigital number, since it uses as much as digits as its factorization.

122765101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 122765101 is about 11079.9413807114. The cubic root of 122765101 is about 497.0021969413.

The spelling of 122765101 in words is "one hundred twenty-two million, seven hundred sixty-five thousand, one hundred one".