122154712321 has 8 divisors (see below), whose sum is σ = 133512551424. Its totient is φ = 111260458560.

The previous prime is 122154712301. The next prime is 122154712349. The reversal of 122154712321 is 123217451221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122154712321 - 2¹¹ = 122154710273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122154712301) 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, 115895785 + ... + 115896838.

It is an arithmetic number, because the mean of its divisors is an integer number (16689068928).

Almost surely, 2^122154712321 is an apocalyptic number.

It is an amenable number.

122154712321 is a deficient number, since it is larger than the sum of its proper divisors (11357839103).

122154712321 is a wasteful number, since it uses less digits than its factorization.

122154712321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231792671.

The product of its digits is 6720, while the sum is 31.

The spelling of 122154712321 in words is "one hundred twenty-two billion, one hundred fifty-four million, seven hundred twelve thousand, three hundred twenty-one".