122222110212 has 72 divisors (see below), whose sum is σ = 321769611072. Its totient is φ = 39081268800.

The previous prime is 122222110207. The next prime is 122222110253. The reversal of 122222110212 is 212011222221.

It is a happy number.

122222110212 is a `hidden beast` number, since 1 + 222 + 221 + 10 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 551614 + ... + 740757.

It is an arithmetic number, because the mean of its divisors is an integer number (4469022376).

Almost surely, 2^122222110212 is an apocalyptic number.

122222110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122222110212 is an abundant number, since it is smaller than the sum of its proper divisors (199547500860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122222110212 is a wasteful number, since it uses less digits than its factorization.

122222110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292489 (or 1292484 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122222110212 its reverse (212011222221), we get a palindrome (334233332433).

The spelling of 122222110212 in words is "one hundred twenty-two billion, two hundred twenty-two million, one hundred ten thousand, two hundred twelve".