122733221 has 16 divisors (see below), whose sum is σ = 139835136. Its totient is φ = 106862976.

The previous prime is 122733211. The next prime is 122733229. The reversal of 122733221 is 122337221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122733221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122733229) 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, 19016 + ... + 24638.

It is an arithmetic number, because the mean of its divisors is an integer number (8739696).

Almost surely, 2^122733221 is an apocalyptic number.

It is an amenable number.

122733221 is a deficient number, since it is larger than the sum of its proper divisors (17101915).

122733221 is a wasteful number, since it uses less digits than its factorization.

122733221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5732.

The product of its digits is 1008, while the sum is 23.

The square root of 122733221 is about 11078.5026515319. The cubic root of 122733221 is about 496.9591722228.

The spelling of 122733221 in words is "one hundred twenty-two million, seven hundred thirty-three thousand, two hundred twenty-one".