2211110020 has 24 divisors (see below), whose sum is σ = 5306664384. Its totient is φ = 758094816.

The previous prime is 2211109997. The next prime is 2211110131. The reversal of 2211110020 is 200111122.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2211109979 and 2211110006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7896682 + ... + 7896961.

It is an arithmetic number, because the mean of its divisors is an integer number (221111016).

Almost surely, 2^2211110020 is an apocalyptic number.

2211110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211110020 is an abundant number, since it is smaller than the sum of its proper divisors (3095554364).

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

2211110020 is a wasteful number, since it uses less digits than its factorization.

2211110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15793659 (or 15793657 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2211110020 is about 47022.4416635291. The cubic root of 2211110020 is about 1302.7771046493. Note that the first 3 decimals are identical.

Adding to 2211110020 its reverse (200111122), we get a palindrome (2411221142).

It can be divided in two parts, 22111 and 10020, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 2211110020 in words is "two billion, two hundred eleven million, one hundred ten thousand, twenty".