122221724 has 12 divisors (see below), whose sum is σ = 223187664. Its totient is φ = 58453824.

The previous prime is 122221711. The next prime is 122221739. The reversal of 122221724 is 427122221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 122221724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664157 + ... + 664340.

It is an arithmetic number, because the mean of its divisors is an integer number (18598972).

Almost surely, 2^122221724 is an apocalyptic number.

It is an amenable number.

122221724 is a deficient number, since it is larger than the sum of its proper divisors (100965940).

122221724 is a wasteful number, since it uses less digits than its factorization.

122221724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328524 (or 1328522 counting only the distinct ones).

The product of its digits is 896, while the sum is 23.

The square root of 122221724 is about 11055.3934348806. The cubic root of 122221724 is about 496.2678433267.

Adding to 122221724 its reverse (427122221), we get a palindrome (549343945).

The spelling of 122221724 in words is "one hundred twenty-two million, two hundred twenty-one thousand, seven hundred twenty-four".