122388222153921 has 16 divisors (see below), whose sum is σ = 168811636023360. Its totient is φ = 78778488031040.

The previous prime is 122388222153839. The next prime is 122388222153931. The reversal of 122388222153921 is 129351222883221.

122388222153921 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 122388222153921 - 2¹⁷ = 122388222022849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122388222153931) 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, 77968591 + ... + 79522811.

It is an arithmetic number, because the mean of its divisors is an integer number (10550727251460).

Almost surely, 2^{122388222153921} is an apocalyptic number.

It is an amenable number.

122388222153921 is a deficient number, since it is larger than the sum of its proper divisors (46423413869439).

122388222153921 is a wasteful number, since it uses less digits than its factorization.

122388222153921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459376.

The product of its digits is 1658880, while the sum is 51.

The spelling of 122388222153921 in words is "one hundred twenty-two trillion, three hundred eighty-eight billion, two hundred twenty-two million, one hundred fifty-three thousand, nine hundred twenty-one".