222122111221110 has 64 divisors (see below), whose sum is σ = 585548448837120. Its totient is φ = 53675274470400.

The previous prime is 222122111221079. The next prime is 222122111221117. The reversal of 222122111221110 is 11122111221222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122111221117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8471463291 + ... + 8471489510.

It is an arithmetic number, because the mean of its divisors is an integer number (9149194513080).

Almost surely, 2^{222122111221110} is an apocalyptic number.

222122111221110 is an abundant number, since it is smaller than the sum of its proper divisors (363426337616010).

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

222122111221110 is a wasteful number, since it uses less digits than its factorization.

222122111221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16942952853.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 222122111221110 its reverse (11122111221222), we get a palindrome (233244222442332).

The spelling of 222122111221110 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred ten".