2110020211220 has 24 divisors (see below), whose sum is σ = 4474914155208. Its totient is φ = 835651568000.

The previous prime is 2110020211219. The next prime is 2110020211223. The reversal of 2110020211220 is 221120200112.

It can be written as a sum of positive squares in 4 ways, for example, as 1398973259524 + 711046951696 = 1182782^2 + 843236^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2110020211195 and 2110020211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110020211223) 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 7 ways as a sum of consecutive naturals, for example, 522280211 + ... + 522284250.

It is an arithmetic number, because the mean of its divisors is an integer number (186454756467).

Almost surely, 2^{2110020211220} is an apocalyptic number.

2110020211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2110020211220 is an abundant number, since it is smaller than the sum of its proper divisors (2364893943988).

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

2110020211220 is a wasteful number, since it uses less digits than its factorization.

2110020211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044564571 (or 1044564569 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2110020211220 its reverse (221120200112), we get a palindrome (2331140411332).

The spelling of 2110020211220 in words is "two trillion, one hundred ten billion, twenty million, two hundred eleven thousand, two hundred twenty".