993035214221 has 4 divisors (see below), whose sum is σ = 993220798944. Its totient is φ = 992849629500.

The previous prime is 993035214209. The next prime is 993035214229. The reversal of 993035214221 is 122412530399.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 993035214221 - 2³⁸ = 718157307277 is a prime.

It is a super-2 number, since 2×993035214221² (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 (993035214229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92784335 + ... + 92795036.

It is an arithmetic number, because the mean of its divisors is an integer number (248305199736).

Almost surely, 2^993035214221 is an apocalyptic number.

It is an amenable number.

993035214221 is a deficient number, since it is larger than the sum of its proper divisors (185584723).

993035214221 is a wasteful number, since it uses less digits than its factorization.

993035214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185584722.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 993035214221 in words is "nine hundred ninety-three billion, thirty-five million, two hundred fourteen thousand, two hundred twenty-one".