122656215422 has 16 divisors (see below), whose sum is σ = 198172699872. Its totient is φ = 56600350560.

The previous prime is 122656215421. The next prime is 122656215439. The reversal of 122656215422 is 224512656221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122656215421) 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, 277538 + ... + 567749.

It is an arithmetic number, because the mean of its divisors is an integer number (12385793742).

Almost surely, 2^122656215422 is an apocalyptic number.

122656215422 is a deficient number, since it is larger than the sum of its proper divisors (75516484450).

122656215422 is a wasteful number, since it uses less digits than its factorization.

122656215422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850883.

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

The spelling of 122656215422 in words is "one hundred twenty-two billion, six hundred fifty-six million, two hundred fifteen thousand, four hundred twenty-two".