222021222121012 has 24 divisors (see below), whose sum is σ = 390295339616000. Its totient is φ = 110508420820896.

The previous prime is 222021222120979. The next prime is 222021222121021. The reversal of 222021222121012 is 210121222120222.

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, 13296012 + ... + 24916387.

Almost surely, 2^{222021222121012} is an apocalyptic number.

It is an amenable number.

222021222121012 is a deficient number, since it is larger than the sum of its proper divisors (168274117494988).

222021222121012 is a wasteful number, since it uses less digits than its factorization.

222021222121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38218975 (or 38218973 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222021222121012 its reverse (210121222120222), we get a palindrome (432142444241234).

The spelling of 222021222121012 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, twelve".