2123322212220 has 96 divisors (see below), whose sum is σ = 6496722650880. Its totient is φ = 513876648960.

The previous prime is 2123322212201. The next prime is 2123322212237. The reversal of 2123322212220 is 222122233212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2321230 + ... + 3103989.

It is an arithmetic number, because the mean of its divisors is an integer number (67674194280).

Almost surely, 2^{2123322212220} is an apocalyptic number.

2123322212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123322212220 is an abundant number, since it is smaller than the sum of its proper divisors (4373400438660).

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

2123322212220 is a wasteful number, since it uses less digits than its factorization.

2123322212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5425835 (or 5425833 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2123322212220 its reverse (222122233212), we get a palindrome (2345444445432).

The spelling of 2123322212220 in words is "two trillion, one hundred twenty-three billion, three hundred twenty-two million, two hundred twelve thousand, two hundred twenty".