221334010993 has 8 divisors (see below), whose sum is σ = 223141897440. Its totient is φ = 219527917440.

The previous prime is 221334010991. The next prime is 221334010999. The reversal of 221334010993 is 399010433122.

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 221334010993 - 2¹ = 221334010991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221334010991) 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, 199755 + ... + 694672.

It is an arithmetic number, because the mean of its divisors is an integer number (27892737180).

Almost surely, 2^221334010993 is an apocalyptic number.

It is an amenable number.

221334010993 is a deficient number, since it is larger than the sum of its proper divisors (1807886447).

221334010993 is a wasteful number, since it uses less digits than its factorization.

221334010993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896447.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 221334010993 in words is "two hundred twenty-one billion, three hundred thirty-four million, ten thousand, nine hundred ninety-three".