2100220144420 has 48 divisors (see below), whose sum is σ = 4513412312640. Its totient is φ = 820481832576.

The previous prime is 2100220144397. The next prime is 2100220144457. The reversal of 2100220144420 is 244410220012.

It is a junction number, because it is equal to n+sod(n) for n = 2100220144391 and 2100220144400.

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, 10750371 + ... + 10943989.

It is an arithmetic number, because the mean of its divisors is an integer number (94029423180).

Almost surely, 2^{2100220144420} is an apocalyptic number.

2100220144420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100220144420 is an abundant number, since it is smaller than the sum of its proper divisors (2413192168220).

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

2100220144420 is a wasteful number, since it uses less digits than its factorization.

2100220144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206284 (or 206282 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2100220144420 its reverse (244410220012), we get a palindrome (2344630364432).

The spelling of 2100220144420 in words is "two trillion, one hundred billion, two hundred twenty million, one hundred forty-four thousand, four hundred twenty".