222121012012012 has 6 divisors (see below), whose sum is σ = 388711771021028. Its totient is φ = 111060506006004.

The previous prime is 222121012011979. The next prime is 222121012012051. The reversal of 222121012012012 is 210210210121222.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27765126501498 + ... + 27765126501505.

Almost surely, 2^{222121012012012} is an apocalyptic number.

It is an amenable number.

222121012012012 is a deficient number, since it is larger than the sum of its proper divisors (166590759009016).

222121012012012 is a wasteful number, since it uses less digits than its factorization.

222121012012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55530253003007 (or 55530253003005 counting only the distinct ones).

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

Adding to 222121012012012 its reverse (210210210121222), we get a palindrome (432331222133234).

The spelling of 222121012012012 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, twelve million, twelve thousand, twelve".