2231044221 has 8 divisors (see below), whose sum is σ = 3399686464. Its totient is φ = 1274882400.

The previous prime is 2231044217. The next prime is 2231044243. The reversal of 2231044221 is 1224401322.

2231044221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2231044221 - 2² = 2231044217 is a prime.

It is a super-3 number, since 3×2231044221³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 106240201 = 2231044221 / (2 + 2 + 3 + 1 + 0 + 4 + 4 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231044271) 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, 53120080 + ... + 53120121.

It is an arithmetic number, because the mean of its divisors is an integer number (424960808).

Almost surely, 2^2231044221 is an apocalyptic number.

2231044221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2231044221 is a deficient number, since it is larger than the sum of its proper divisors (1168642243).

2231044221 is a wasteful number, since it uses less digits than its factorization.

2231044221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106240211.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2231044221 is about 47233.9308230852. The cubic root of 2231044221 is about 1306.6804481560.

Adding to 2231044221 its reverse (1224401322), we get a palindrome (3455445543).

The spelling of 2231044221 in words is "two billion, two hundred thirty-one million, forty-four thousand, two hundred twenty-one".