2110223021 has 8 divisors (see below), whose sum is σ = 2232987264. Its totient is φ = 1990043440.

The previous prime is 2110222993. The next prime is 2110223023. The reversal of 2110223021 is 1203220112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110223021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110222987 and 2110223005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110223023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644486 + ... + 647751.

It is an arithmetic number, because the mean of its divisors is an integer number (279123408).

Almost surely, 2^2110223021 is an apocalyptic number.

It is an amenable number.

2110223021 is a deficient number, since it is larger than the sum of its proper divisors (122764243).

2110223021 is a wasteful number, since it uses less digits than its factorization.

2110223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292331.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2110223021 is about 45937.1638327836. The cubic root of 2110223021 is about 1282.6538001534.

Adding to 2110223021 its reverse (1203220112), we get a palindrome (3313443133).

The spelling of 2110223021 in words is "two billion, one hundred ten million, two hundred twenty-three thousand, twenty-one".