222100121110110 has 128 divisors (see below), whose sum is σ = 552084304121856. Its totient is φ = 57123599569920.

The previous prime is 222100121110103. The next prime is 222100121110111. The reversal of 222100121110110 is 11011121001222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222100121110110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222100121110111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1855056709 + ... + 1855176431.

It is an arithmetic number, because the mean of its divisors is an integer number (4313158625952).

Almost surely, 2^{222100121110110} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222100121110110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276042152060928).

222100121110110 is an abundant number, since it is smaller than the sum of its proper divisors (329984183011746).

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

222100121110110 is a wasteful number, since it uses less digits than its factorization.

222100121110110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126450.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 222100121110110 its reverse (11011121001222), we get a palindrome (233111242111332).

The spelling of 222100121110110 in words is "two hundred twenty-two trillion, one hundred billion, one hundred twenty-one million, one hundred ten thousand, one hundred ten".