959993313221 has 8 divisors (see below), whose sum is σ = 980591493504. Its totient is φ = 939402332640.

The previous prime is 959993313211. The next prime is 959993313277. The reversal of 959993313221 is 122313399959.

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 not a de Polignac number, because 959993313221 - 2²² = 959989118917 is a prime.

It is a super-2 number, since 2×959993313221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (959993313211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1529960 + ... + 2064161.

It is an arithmetic number, because the mean of its divisors is an integer number (122573936688).

Almost surely, 2^959993313221 is an apocalyptic number.

It is an amenable number.

959993313221 is a deficient number, since it is larger than the sum of its proper divisors (20598180283).

959993313221 is a wasteful number, since it uses less digits than its factorization.

959993313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3599851.

The product of its digits is 3542940, while the sum is 56.

The spelling of 959993313221 in words is "nine hundred fifty-nine billion, nine hundred ninety-three million, three hundred thirteen thousand, two hundred twenty-one".