2111100020220 has 96 divisors (see below), whose sum is σ = 6223592551680. Its totient is φ = 533210273280.

The previous prime is 2111100020213. The next prime is 2111100020279. The reversal of 2111100020220 is 220200011112.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2111100020196 and 2111100020205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4904080 + ... + 5317160.

It is an arithmetic number, because the mean of its divisors is an integer number (64829089080).

Almost surely, 2^{2111100020220} is an apocalyptic number.

2111100020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111100020220 is an abundant number, since it is smaller than the sum of its proper divisors (4112492531460).

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

2111100020220 is a wasteful number, since it uses less digits than its factorization.

2111100020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417595 (or 417593 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2111100020220 its reverse (220200011112), we get a palindrome (2331300031332).

The spelling of 2111100020220 in words is "two trillion, one hundred eleven billion, one hundred million, twenty thousand, two hundred twenty".