212220112110 has 16 divisors (see below), whose sum is σ = 509328269136. Its totient is φ = 56592029888.

The previous prime is 212220112109. The next prime is 212220112121. The reversal of 212220112110 is 11211022212.

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 212220112110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3537001839 + ... + 3537001898.

It is an arithmetic number, because the mean of its divisors is an integer number (31833016821).

Almost surely, 2^212220112110 is an apocalyptic number.

212220112110 is an abundant number, since it is smaller than the sum of its proper divisors (297108157026).

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

212220112110 is a wasteful number, since it uses less digits than its factorization.

212220112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074003747.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212220112110 its reverse (11211022212), we get a palindrome (223431134322).

The spelling of 212220112110 in words is "two hundred twelve billion, two hundred twenty million, one hundred twelve thousand, one hundred ten".