2100000033220 has 24 divisors (see below), whose sum is σ = 4410311076864. Its totient is φ = 839940773856.

The previous prime is 2100000033191. The next prime is 2100000033319. The reversal of 2100000033220 is 223300000012.

It is a happy number.

It is a super-2 number, since 2×2100000033220² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2100000033220.

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 7 ways as a sum of consecutive naturals, for example, 3411222 + ... + 3979501.

It is an arithmetic number, because the mean of its divisors is an integer number (183762961536).

Almost surely, 2^{2100000033220} is an apocalyptic number.

2100000033220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100000033220 is an abundant number, since it is smaller than the sum of its proper divisors (2310311043644).

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

2100000033220 is a wasteful number, since it uses less digits than its factorization.

2100000033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7404939 (or 7404937 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 2100000033220 its reverse (223300000012), we get a palindrome (2323300033232).

The spelling of 2100000033220 in words is "two trillion, one hundred billion, thirty-three thousand, two hundred twenty".