222222202121012 has 24 divisors (see below), whose sum is σ = 390905280057600. Its totient is φ = 110534983543296.

The previous prime is 222222202120999. The next prime is 222222202121083. The reversal of 222222202121012 is 210121202222222.

It is a congruent number.

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, 398813939 + ... + 399370757.

It is an arithmetic number, because the mean of its divisors is an integer number (16287720002400).

Almost surely, 2^{222222202121012} is an apocalyptic number.

It is an amenable number.

222222202121012 is a deficient number, since it is larger than the sum of its proper divisors (168683077936588).

222222202121012 is a wasteful number, since it uses less digits than its factorization.

222222202121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073975 (or 1073973 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222222202121012 its reverse (210121202222222), we get a palindrome (432343404343234).

The spelling of 222222202121012 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred two million, one hundred twenty-one thousand, twelve".