2103211311220 has 12 divisors (see below), whose sum is σ = 4416743753604. Its totient is φ = 841284524480.

The previous prime is 2103211311167. The next prime is 2103211311233. The reversal of 2103211311220 is 221131123012.

It can be written as a sum of positive squares in 2 ways, for example, as 629988263524 + 1473223047696 = 793718^2 + 1213764^2 .

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 3 ways as a sum of consecutive naturals, for example, 52580282761 + ... + 52580282800.

It is an arithmetic number, because the mean of its divisors is an integer number (368061979467).

Almost surely, 2^{2103211311220} is an apocalyptic number.

2103211311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103211311220 is an abundant number, since it is smaller than the sum of its proper divisors (2313532442384).

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

2103211311220 is a wasteful number, since it uses less digits than its factorization.

2103211311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105160565570 (or 105160565568 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2103211311220 its reverse (221131123012), we get a palindrome (2324342434232).

The spelling of 2103211311220 in words is "two trillion, one hundred three billion, two hundred eleven million, three hundred eleven thousand, two hundred twenty".