2123313112220 has 24 divisors (see below), whose sum is σ = 4459012885824. Its totient is φ = 849314702016.

The previous prime is 2123313112213. The next prime is 2123313112231. The reversal of 2123313112220 is 222113133212.

It is a congruent number.

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, 1108109 + ... + 2339771.

It is an arithmetic number, because the mean of its divisors is an integer number (185792203576).

Almost surely, 2^{2123313112220} is an apocalyptic number.

2123313112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123313112220 is an abundant number, since it is smaller than the sum of its proper divisors (2335699773604).

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

2123313112220 is a wasteful number, since it uses less digits than its factorization.

2123313112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317869 (or 1317867 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2123313112220 its reverse (222113133212), we get a palindrome (2345426245432).

The spelling of 2123313112220 in words is "two trillion, one hundred twenty-three billion, three hundred thirteen million, one hundred twelve thousand, two hundred twenty".