221222212210002 has 16 divisors (see below), whose sum is σ = 442444570821792. Its totient is φ = 73740713003040.

The previous prime is 221222212209967. The next prime is 221222212210003. The reversal of 221222212210002 is 200012212222122.

It is not an unprimeable number, because it can be changed into a prime (221222212210003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29757313 + ... + 36440939.

It is an arithmetic number, because the mean of its divisors is an integer number (27652785676362).

Almost surely, 2^{221222212210002} is an apocalyptic number.

221222212210002 is an abundant number, since it is smaller than the sum of its proper divisors (221222358611790).

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

221222212210002 is a wasteful number, since it uses less digits than its factorization.

221222212210002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12200153.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 221222212210002 its reverse (200012212222122), we get a palindrome (421234424432124).

The spelling of 221222212210002 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred twelve million, two hundred ten thousand, two".