122231212112 has 10 divisors (see below), whose sum is σ = 236822973498. Its totient is φ = 61115606048.

The previous prime is 122231212111. The next prime is 122231212123. The reversal of 122231212112 is 211212132221.

It can be written as a sum of positive squares in only one way, i.e., 89637964816 + 32593247296 = 299396^2 + 180536^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231212111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3819725363 + ... + 3819725394.

Almost surely, 2^122231212112 is an apocalyptic number.

It is an amenable number.

122231212112 is a deficient number, since it is larger than the sum of its proper divisors (114591761386).

122231212112 is an equidigital number, since it uses as much as digits as its factorization.

122231212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7639450765 (or 7639450759 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

Adding to 122231212112 its reverse (211212132221), we get a palindrome (333443344333).

The spelling of 122231212112 in words is "one hundred twenty-two billion, two hundred thirty-one million, two hundred twelve thousand, one hundred twelve".