2200100211220 has 48 divisors (see below), whose sum is σ = 4710549044880. Its totient is φ = 862855059456.

The previous prime is 2200100211217. The next prime is 2200100211223. The reversal of 2200100211220 is 221120010022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2200100211217) and next prime (2200100211223).

It can be written as a sum of positive squares in 8 ways, for example, as 285718044676 + 1914382166544 = 534526^2 + 1383612^2 .

It is a super-2 number, since 2×2200100211220² (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 2200100211220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200100211223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 881374 + ... + 2275306.

It is an arithmetic number, because the mean of its divisors is an integer number (98136438435).

Almost surely, 2^{2200100211220} is an apocalyptic number.

2200100211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2200100211220 is an abundant number, since it is smaller than the sum of its proper divisors (2510448833660).

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

2200100211220 is a wasteful number, since it uses less digits than its factorization.

2200100211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395484 (or 1395482 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2200100211220 its reverse (221120010022), we get a palindrome (2421220221242).

The spelling of 2200100211220 in words is "two trillion, two hundred billion, one hundred million, two hundred eleven thousand, two hundred twenty".