2131220110 has 16 divisors (see below), whose sum is σ = 3859734096. Its totient is φ = 847257408.

The previous prime is 2131220083. The next prime is 2131220131. The reversal of 2131220110 is 110221312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652119 + ... + 655378.

It is an arithmetic number, because the mean of its divisors is an integer number (241233381).

Almost surely, 2^2131220110 is an apocalyptic number.

2131220110 is a deficient number, since it is larger than the sum of its proper divisors (1728513986).

2131220110 is a wasteful number, since it uses less digits than its factorization.

2131220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307667.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2131220110 is about 46165.1395535636. The cubic root of 2131220110 is about 1286.8939776505.

Adding to 2131220110 its reverse (110221312), we get a palindrome (2241441422).

The spelling of 2131220110 in words is "two billion, one hundred thirty-one million, two hundred twenty thousand, one hundred ten".