122232222172 has 24 divisors (see below), whose sum is σ = 226520854560. Its totient is φ = 57512985600.

The previous prime is 122232222149. The next prime is 122232222173. The reversal of 122232222172 is 271222232221.

It is a super-2 number, since 2×122232222172² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122232222172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122232222173) 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, 377604 + ... + 622132.

It is an arithmetic number, because the mean of its divisors is an integer number (9438368940).

Almost surely, 2^122232222172 is an apocalyptic number.

It is an amenable number.

122232222172 is a deficient number, since it is larger than the sum of its proper divisors (104288632388).

122232222172 is a wasteful number, since it uses less digits than its factorization.

122232222172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251901 (or 251899 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

Adding to 122232222172 its reverse (271222232221), we get a palindrome (393454454393).

The spelling of 122232222172 in words is "one hundred twenty-two billion, two hundred thirty-two million, two hundred twenty-two thousand, one hundred seventy-two".