222101121212012 has 24 divisors (see below), whose sum is σ = 444202760180256. Its totient is φ = 95186083857408.

The previous prime is 222101121211933. The next prime is 222101121212021. The reversal of 222101121212012 is 210212121101222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22651478 + ... + 30940130.

It is an arithmetic number, because the mean of its divisors is an integer number (18508448340844).

Almost surely, 2^{222101121212012} is an apocalyptic number.

It is an amenable number.

222101121212012 is an abundant number, since it is smaller than the sum of its proper divisors (222101638968244).

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

222101121212012 is a wasteful number, since it uses less digits than its factorization.

222101121212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9245657 (or 9245655 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222101121212012 its reverse (210212121101222), we get a palindrome (432313242313234).

The spelling of 222101121212012 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred twenty-one million, two hundred twelve thousand, twelve".