2111220100220 has 192 divisors, whose sum is σ = 6160747299840. Its totient is φ = 586737561600.

The previous prime is 2111220100217. The next prime is 2111220100261. The reversal of 2111220100220 is 220010221112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2111220100195 and 2111220100204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1624751 + ... + 2619590.

It is an arithmetic number, because the mean of its divisors is an integer number (32087225520).

Almost surely, 2^{2111220100220} is an apocalyptic number.

2111220100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111220100220 is an abundant number, since it is smaller than the sum of its proper divisors (4049527199620).

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

2111220100220 is a wasteful number, since it uses less digits than its factorization.

2111220100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244404 (or 4244402 counting only the distinct ones).

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

Adding to 2111220100220 its reverse (220010221112), we get a palindrome (2331230321332).

The spelling of 2111220100220 in words is "two trillion, one hundred eleven billion, two hundred twenty million, one hundred thousand, two hundred twenty".