222221121010110 has 48 divisors (see below), whose sum is σ = 591866985724560. Its totient is φ = 57813624977280.

The previous prime is 222221121010099. The next prime is 222221121010157. The reversal of 222221121010110 is 11010121122222.

222221121010110 is a `hidden beast` number, since 2 + 222 + 211 + 210 + 10 + 1 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30111259320 + ... + 30111266699.

It is an arithmetic number, because the mean of its divisors is an integer number (12330562202595).

Almost surely, 2^{222221121010110} is an apocalyptic number.

222221121010110 is an abundant number, since it is smaller than the sum of its proper divisors (369645864714450).

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

222221121010110 is a wasteful number, since it uses less digits than its factorization.

222221121010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60222526073 (or 60222526070 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222221121010110 its reverse (11010121122222), we get a palindrome (233231242132332).

The spelling of 222221121010110 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, ten thousand, one hundred ten".