2223131021 has 16 divisors (see below), whose sum is σ = 2387750400. Its totient is φ = 2062364928.

The previous prime is 2223131011. The next prime is 2223131023. The reversal of 2223131021 is 1201313222.

It is not a de Polignac number, because 2223131021 - 2¹⁴ = 2223114637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223131023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1125791 + ... + 1127763.

It is an arithmetic number, because the mean of its divisors is an integer number (149234400).

Almost surely, 2^2223131021 is an apocalyptic number.

It is an amenable number.

2223131021 is a deficient number, since it is larger than the sum of its proper divisors (164619379).

2223131021 is a wasteful number, since it uses less digits than its factorization.

2223131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2223131021 is about 47150.0903604648. The cubic root of 2223131021 is about 1305.1337474914.

Adding to 2223131021 its reverse (1201313222), we get a palindrome (3424444243).

The spelling of 2223131021 in words is "two billion, two hundred twenty-three million, one hundred thirty-one thousand, twenty-one".