122540263161 has 16 divisors (see below), whose sum is σ = 166482915840. Its totient is φ = 80145802880.

The previous prime is 122540263133. The next prime is 122540263169. The reversal of 122540263161 is 161362045221.

It is not a de Polignac number, because 122540263161 - 2¹⁰ = 122540262137 is a prime.

It is a super-2 number, since 2×122540263161² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122540263169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2847160 + ... + 2889878.

It is an arithmetic number, because the mean of its divisors is an integer number (10405182240).

Almost surely, 2^122540263161 is an apocalyptic number.

It is an amenable number.

122540263161 is a deficient number, since it is larger than the sum of its proper divisors (43942652679).

122540263161 is a wasteful number, since it uses less digits than its factorization.

122540263161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60816.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 122540263161 in words is "one hundred twenty-two billion, five hundred forty million, two hundred sixty-three thousand, one hundred sixty-one".