122642156054 has 16 divisors (see below), whose sum is σ = 203105085120. Its totient is φ = 55074789960.

The previous prime is 122642156051. The next prime is 122642156057. The reversal of 122642156054 is 450651246221.

It is an interprime number because it is at equal distance from previous prime (122642156051) and next prime (122642156057).

It is a junction number, because it is equal to n+sod(n) for n = 122642155999 and 122642156017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122642156051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33580364 + ... + 33584015.

It is an arithmetic number, because the mean of its divisors is an integer number (12694067820).

Almost surely, 2^122642156054 is an apocalyptic number.

122642156054 is a deficient number, since it is larger than the sum of its proper divisors (80462929066).

122642156054 is a wasteful number, since it uses less digits than its factorization.

122642156054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67164475.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 122642156054 in words is "one hundred twenty-two billion, six hundred forty-two million, one hundred fifty-six thousand, fifty-four".