12212222200122 has 64 divisors (see below), whose sum is σ = 29196474660864. Its totient is φ = 3329574050880.

The previous prime is 12212222200097. The next prime is 12212222200151. The reversal of 12212222200122 is 22100222221221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14607628 + ... + 15420999.

It is an arithmetic number, because the mean of its divisors is an integer number (456194916576).

Almost surely, 2^{12212222200122} is an apocalyptic number.

12212222200122 is an abundant number, since it is smaller than the sum of its proper divisors (16984252460742).

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

12212222200122 is a wasteful number, since it uses less digits than its factorization.

12212222200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30029083.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12212222200122 its reverse (22100222221221), we get a palindrome (34312444421343).

The spelling of 12212222200122 in words is "twelve trillion, two hundred twelve billion, two hundred twenty-two million, two hundred thousand, one hundred twenty-two".