743999022221 has 16 divisors (see below), whose sum is σ = 931211299200. Its totient is φ = 578681299008.

The previous prime is 743999022209. The next prime is 743999022233. The reversal of 743999022221 is 122220999347.

It is an interprime number because it is at equal distance from previous prime (743999022209) and next prime (743999022233).

It is a cyclic number.

It is not a de Polignac number, because 743999022221 - 2¹⁸ = 743998760077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 743999022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743999042221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69281186 + ... + 69291923.

It is an arithmetic number, because the mean of its divisors is an integer number (58200706200).

Almost surely, 2^743999022221 is an apocalyptic number.

It is an amenable number.

743999022221 is a deficient number, since it is larger than the sum of its proper divisors (187212276979).

743999022221 is a wasteful number, since it uses less digits than its factorization.

743999022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138573188.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 743999022221 in words is "seven hundred forty-three billion, nine hundred ninety-nine million, twenty-two thousand, two hundred twenty-one".