122152561101 has 6 divisors (see below), whose sum is σ = 176442588270. Its totient is φ = 81435040728.

The previous prime is 122152561099. The next prime is 122152561103. The reversal of 122152561101 is 101165251221.

It is a happy number.

122152561101 is a `hidden beast` number, since 1 + 2 + 21 + 5 + 25 + 611 + 0 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (122152561099) and next prime (122152561103).

It can be written as a sum of positive squares in only one way, i.e., 112714632900 + 9437928201 = 335730^2 + 97149^2 .

It is not a de Polignac number, because 122152561101 - 2¹ = 122152561099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122152561103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6786253386 + ... + 6786253403.

It is an arithmetic number, because the mean of its divisors is an integer number (29407098045).

Almost surely, 2^122152561101 is an apocalyptic number.

It is an amenable number.

122152561101 is a deficient number, since it is larger than the sum of its proper divisors (54290027169).

122152561101 is a wasteful number, since it uses less digits than its factorization.

122152561101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13572506795 (or 13572506792 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The spelling of 122152561101 in words is "one hundred twenty-two billion, one hundred fifty-two million, five hundred sixty-one thousand, one hundred one".