2101223133220 has 48 divisors (see below), whose sum is σ = 4479039129600. Its totient is φ = 827878746240.

The previous prime is 2101223133193. The next prime is 2101223133227. The reversal of 2101223133220 is 223313221012.

It is a junction number, because it is equal to n+sod(n) for n = 2101223133191 and 2101223133200.

It is not an unprimeable number, because it can be changed into a prime (2101223133227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914260 + ... + 2244619.

It is an arithmetic number, because the mean of its divisors is an integer number (93313315200).

Almost surely, 2^{2101223133220} is an apocalyptic number.

2101223133220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101223133220 is an abundant number, since it is smaller than the sum of its proper divisors (2377815996380).

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

2101223133220 is a wasteful number, since it uses less digits than its factorization.

2101223133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159388 (or 3159386 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2101223133220 its reverse (223313221012), we get a palindrome (2324536354232).

The spelling of 2101223133220 in words is "two trillion, one hundred one billion, two hundred twenty-three million, one hundred thirty-three thousand, two hundred twenty".