222120102121002 has 32 divisors (see below), whose sum is σ = 493608854289600. Its totient is φ = 74038739937264.

The previous prime is 222120102120977. The next prime is 222120102121007. The reversal of 222120102121002 is 200121201021222.

It is a happy number.

222120102121002 is a `hidden beast` number, since 222 + 120 + 10 + 212 + 100 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (222120102121007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32826693 + ... + 39010664.

It is an arithmetic number, because the mean of its divisors is an integer number (15425276696550).

Almost surely, 2^{222120102121002} is an apocalyptic number.

222120102121002 is an abundant number, since it is smaller than the sum of its proper divisors (271488752168598).

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

222120102121002 is a wasteful number, since it uses less digits than its factorization.

222120102121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71894627 (or 71894621 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222120102121002 its reverse (200121201021222), we get a palindrome (422241303142224).

The spelling of 222120102121002 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred two million, one hundred twenty-one thousand, two".