12212110 has 16 divisors (see below), whose sum is σ = 22021632. Its totient is φ = 4876000.

The previous prime is 12212107. The next prime is 12212111. The reversal of 12212110 is 1121221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10035 + ... + 11185.

It is an arithmetic number, because the mean of its divisors is an integer number (1376352).

Almost surely, 2^12212110 is an apocalyptic number.

12212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212110 is a deficient number, since it is larger than the sum of its proper divisors (9809522).

12212110 is a wasteful number, since it uses less digits than its factorization.

12212110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 12212110 is about 3494.5829507968. The cubic root of 12212110 is about 230.2838964402.

Adding to 12212110 its reverse (1121221), we get a palindrome (13333331).

The spelling of 12212110 in words is "twelve million, two hundred twelve thousand, one hundred ten".