222121000002 has 32 divisors (see below), whose sum is σ = 491860894464. Its totient is φ = 66304774800.

The previous prime is 222120999967. The next prime is 222121000033. The reversal of 222121000002 is 200000121222.

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, 25111024 + ... + 25119867.

It is an arithmetic number, because the mean of its divisors is an integer number (15370652952).

Almost surely, 2^222121000002 is an apocalyptic number.

222121000002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222121000002 is an abundant number, since it is smaller than the sum of its proper divisors (269739894462).

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

222121000002 is a wasteful number, since it uses less digits than its factorization.

222121000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50230974.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222121000002 its reverse (200000121222), we get a palindrome (422121121224).

The spelling of 222121000002 in words is "two hundred twenty-two billion, one hundred twenty-one million, two", and thus it is an aban number.