1210131310220 has 24 divisors (see below), whose sum is σ = 2904315144864. Its totient is φ = 414902163456.

The previous prime is 1210131310177. The next prime is 1210131310253. The reversal of 1210131310220 is 220131310121.

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, 4321897397 + ... + 4321897676.

It is an arithmetic number, because the mean of its divisors is an integer number (121013131036).

Almost surely, 2^{1210131310220} is an apocalyptic number.

1210131310220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210131310220 is an abundant number, since it is smaller than the sum of its proper divisors (1694183834644).

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

1210131310220 is a wasteful number, since it uses less digits than its factorization.

1210131310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8643795089 (or 8643795087 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1210131310220 its reverse (220131310121), we get a palindrome (1430262620341).

Subtracting from 1210131310220 its reverse (220131310121), we obtain a palindrome (990000000099).

The spelling of 1210131310220 in words is "one trillion, two hundred ten billion, one hundred thirty-one million, three hundred ten thousand, two hundred twenty".