222121110010110 has 32 divisors (see below), whose sum is σ = 533153954511360. Its totient is φ = 59225263726368.

The previous prime is 222121110010081. The next prime is 222121110010139. The reversal of 222121110010110 is 11010011121222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222121110010081) and next prime (222121110010139).

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

It is a self number, because there is not a number n which added to its sum of digits gives 222121110010110.

It is a congruent number.

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, 439260370 + ... + 439765749.

It is an arithmetic number, because the mean of its divisors is an integer number (16661061078480).

Almost surely, 2^{222121110010110} is an apocalyptic number.

222121110010110 is an abundant number, since it is smaller than the sum of its proper divisors (311032844501250).

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

222121110010110 is a wasteful number, since it uses less digits than its factorization.

222121110010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879034552.

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

Adding to 222121110010110 its reverse (11010011121222), we get a palindrome (233131121131332).

The spelling of 222121110010110 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred ten million, ten thousand, one hundred ten".