122232031213 has 4 divisors (see below), whose sum is σ = 122232789180. Its totient is φ = 122231273248.

The previous prime is 122232031153. The next prime is 122232031217. The reversal of 122232031213 is 312130232221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 104405241924 + 17826789289 = 323118^2 + 133517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122232031213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122232031217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29920 + ... + 495337.

It is an arithmetic number, because the mean of its divisors is an integer number (30558197295).

Almost surely, 2^122232031213 is an apocalyptic number.

It is an amenable number.

122232031213 is a deficient number, since it is larger than the sum of its proper divisors (757967).

122232031213 is an equidigital number, since it uses as much as digits as its factorization.

122232031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757966.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 122232031213 its reverse (312130232221), we get a palindrome (434362263434).

The spelling of 122232031213 in words is "one hundred twenty-two billion, two hundred thirty-two million, thirty-one thousand, two hundred thirteen".