122222222212 has 24 divisors (see below), whose sum is σ = 216035128512. Its totient is φ = 60498060000.

The previous prime is 122222222197. The next prime is 122222222237. The reversal of 122222222212 is 212222222221.

122222222212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4086103 + ... + 4115905.

It is an arithmetic number, because the mean of its divisors is an integer number (9001463688).

Almost surely, 2^122222222212 is an apocalyptic number.

It is an amenable number.

122222222212 is a deficient number, since it is larger than the sum of its proper divisors (93812906300).

122222222212 is a wasteful number, since it uses less digits than its factorization.

122222222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40059 (or 40057 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

Adding to 122222222212 its reverse (212222222221), we get a palindrome (334444444433).

Subtracting 122222222212 from its reverse (212222222221), we obtain a palindrome (90000000009).

It can be divided in two parts, 12222222221 and 2, that multiplied together give a palindrome (24444444442).

The spelling of 122222222212 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".