222121002021112 has 64 divisors (see below), whose sum is σ = 428818376908800. Its totient is φ = 107819821612800.

The previous prime is 222121002021047. The next prime is 222121002021143. The reversal of 222121002021112 is 211120200121222.

It is a self number, because there is not a number n which added to its sum of digits gives 222121002021112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47825487 + ... + 52263937.

It is an arithmetic number, because the mean of its divisors is an integer number (6700287139200).

Almost surely, 2^{222121002021112} is an apocalyptic number.

It is an amenable number.

222121002021112 is a deficient number, since it is larger than the sum of its proper divisors (206697374887688).

222121002021112 is a wasteful number, since it uses less digits than its factorization.

222121002021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439876 (or 4439872 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222121002021112 its reverse (211120200121222), we get a palindrome (433241202142334).

The spelling of 222121002021112 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two million, twenty-one thousand, one hundred twelve".