221222212211010 has 32 divisors (see below), whose sum is σ = 562164680443392. Its totient is φ = 55522437574400.

The previous prime is 221222212210969. The next prime is 221222212211047. The reversal of 221222212211010 is 10112212222122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216884521266 + ... + 216884522285.

It is an arithmetic number, because the mean of its divisors is an integer number (17567646263856).

Almost surely, 2^{221222212211010} is an apocalyptic number.

221222212211010 is an abundant number, since it is smaller than the sum of its proper divisors (340942468232382).

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

221222212211010 is a wasteful number, since it uses less digits than its factorization.

221222212211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433769043578.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221222212211010 its reverse (10112212222122), we get a palindrome (231334424433132).

The spelling of 221222212211010 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred twelve million, two hundred eleven thousand, ten".