2110221020 has 24 divisors (see below), whose sum is σ = 4624137504. Its totient is φ = 807388736.

The previous prime is 2110221011. The next prime is 2110221053. The reversal of 2110221020 is 201220112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2110220992 and 2110221010.

It is a congruent number.

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, 2293259 + ... + 2294178.

It is an arithmetic number, because the mean of its divisors is an integer number (192672396).

Almost surely, 2^2110221020 is an apocalyptic number.

2110221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2110221020 is an abundant number, since it is smaller than the sum of its proper divisors (2513916484).

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

2110221020 is a wasteful number, since it uses less digits than its factorization.

2110221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4587469 (or 4587467 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2110221020 is about 45937.1420530272. The cubic root of 2110221020 is about 1282.6533947316.

Adding to 2110221020 its reverse (201220112), we get a palindrome (2311441132).

The spelling of 2110221020 in words is "two billion, one hundred ten million, two hundred twenty-one thousand, twenty".