2131344042220 has 48 divisors (see below), whose sum is σ = 4621327296768. Its totient is φ = 824835790080.

The previous prime is 2131344042193. The next prime is 2131344042239. The reversal of 2131344042220 is 222404431312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2146582 + ... + 2978338.

It is an arithmetic number, because the mean of its divisors is an integer number (96277652016).

Almost surely, 2^{2131344042220} is an apocalyptic number.

2131344042220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131344042220 is an abundant number, since it is smaller than the sum of its proper divisors (2489983254548).

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

2131344042220 is a wasteful number, since it uses less digits than its factorization.

2131344042220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835930 (or 835928 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 2131344042220 its reverse (222404431312), we get a palindrome (2353748473532).

The spelling of 2131344042220 in words is "two trillion, one hundred thirty-one billion, three hundred forty-four million, forty-two thousand, two hundred twenty".