2112110203220 has 24 divisors (see below), whose sum is σ = 4696339158504. Its totient is φ = 795147370496.

The previous prime is 2112110203141. The next prime is 2112110203249. The reversal of 2112110203220 is 223020112112.

It can be written as a sum of positive squares in 4 ways, for example, as 108605838916 + 2003504364304 = 329554^2 + 1415452^2 .

It is a super-2 number, since 2×2112110203220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

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, 3106044077 + ... + 3106044756.

It is an arithmetic number, because the mean of its divisors is an integer number (195680798271).

Almost surely, 2^{2112110203220} is an apocalyptic number.

2112110203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112110203220 is an abundant number, since it is smaller than the sum of its proper divisors (2584228955284).

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

2112110203220 is a wasteful number, since it uses less digits than its factorization.

2112110203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6212088859 (or 6212088857 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2112110203220 its reverse (223020112112), we get a palindrome (2335130315332).

The spelling of 2112110203220 in words is "two trillion, one hundred twelve billion, one hundred ten million, two hundred three thousand, two hundred twenty".