2211112020 has 48 divisors (see below), whose sum is σ = 6667355520. Its totient is φ = 544273536.

The previous prime is 2211112003. The next prime is 2211112049. The reversal of 2211112020 is 202111122.

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 = 2211111987 and 2211112005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1416600 + ... + 1418159.

It is an arithmetic number, because the mean of its divisors is an integer number (138903240).

Almost surely, 2^2211112020 is an apocalyptic number.

2211112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211112020 is an abundant number, since it is smaller than the sum of its proper divisors (4456243500).

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

2211112020 is a wasteful number, since it uses less digits than its factorization.

2211112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834784 (or 2834782 counting only the distinct ones).

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

The square root of 2211112020 is about 47022.4629299657. The cubic root of 2211112020 is about 1302.7774974465. Note that the first 3 decimals are identical.

Adding to 2211112020 its reverse (202111122), we get a palindrome (2413223142).

The spelling of 2211112020 in words is "two billion, two hundred eleven million, one hundred twelve thousand, twenty".