122203221231 has 128 divisors (see below), whose sum is σ = 209491623936. Its totient is φ = 61650616320.

The previous prime is 122203221197. The next prime is 122203221233. The reversal of 122203221231 is 132122302221.

It is not a de Polignac number, because 122203221231 - 2²¹ = 122201124079 is a prime.

It is a super-2 number, since 2×122203221231² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 122203221198 and 122203221207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122203221233) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 187140901 + ... + 187141553.

It is an arithmetic number, because the mean of its divisors is an integer number (1636653312).

Almost surely, 2^122203221231 is an apocalyptic number.

122203221231 is a deficient number, since it is larger than the sum of its proper divisors (87288402705).

122203221231 is a wasteful number, since it uses less digits than its factorization.

122203221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122203221231 its reverse (132122302221), we get a palindrome (254325523452).

The spelling of 122203221231 in words is "one hundred twenty-two billion, two hundred three million, two hundred twenty-one thousand, two hundred thirty-one".