2220211021 has 12 divisors (see below), whose sum is σ = 2592529632. Its totient is φ = 1895791128.

The previous prime is 2220211003. The next prime is 2220211031. The reversal of 2220211021 is 1201120222.

It is a happy number.

2220211021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2220211021 - 2⁷ = 2220210893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220210992 and 2220211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220211001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73255 + ... + 99028.

It is an arithmetic number, because the mean of its divisors is an integer number (216044136).

Almost surely, 2^2220211021 is an apocalyptic number.

It is an amenable number.

2220211021 is a deficient number, since it is larger than the sum of its proper divisors (372318611).

2220211021 is a wasteful number, since it uses less digits than its factorization.

2220211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172560 (or 172553 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2220211021 is about 47119.1152399958. The cubic root of 2220211021 is about 1304.5620822354.

Adding to 2220211021 its reverse (1201120222), we get a palindrome (3421331243).

The spelling of 2220211021 in words is "two billion, two hundred twenty million, two hundred eleven thousand, twenty-one".