2641221231 has 8 divisors (see below), whose sum is σ = 3841776384. Its totient is φ = 1600740120.

The previous prime is 2641221223. The next prime is 2641221287. The reversal of 2641221231 is 1321221462.

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

It is not a de Polignac number, because 2641221231 - 2³ = 2641221223 is a prime.

It is a super-2 number, since 2×2641221231² = 13952099182170310722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641221631) 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, 40018471 + ... + 40018536.

It is an arithmetic number, because the mean of its divisors is an integer number (480222048).

Almost surely, 2^2641221231 is an apocalyptic number.

2641221231 is a deficient number, since it is larger than the sum of its proper divisors (1200555153).

2641221231 is a wasteful number, since it uses less digits than its factorization.

2641221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80037021.

The product of its digits is 1152, while the sum is 24.

The square root of 2641221231 is about 51392.8130286716. The cubic root of 2641221231 is about 1382.2977248435.

Adding to 2641221231 its reverse (1321221462), we get a palindrome (3962442693).

The spelling of 2641221231 in words is "two billion, six hundred forty-one million, two hundred twenty-one thousand, two hundred thirty-one".