12212122110 has 16 divisors (see below), whose sum is σ = 29309093136. Its totient is φ = 3256565888.

The previous prime is 12212122037. The next prime is 12212122127. The reversal of 12212122110 is 1122121221.

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 12212122110.

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, 203535339 + ... + 203535398.

It is an arithmetic number, because the mean of its divisors is an integer number (1831818321).

Almost surely, 2^12212122110 is an apocalyptic number.

12212122110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212122110 is an abundant number, since it is smaller than the sum of its proper divisors (17096971026).

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

12212122110 is a wasteful number, since it uses less digits than its factorization.

12212122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407070747.

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

Adding to 12212122110 its reverse (1122121221), we get a palindrome (13334243331).

The spelling of 12212122110 in words is "twelve billion, two hundred twelve million, one hundred twenty-two thousand, one hundred ten".