221994162803 has 8 divisors (see below), whose sum is σ = 254194581600. Its totient is φ = 189915485760.

The previous prime is 221994162791. The next prime is 221994162851. The reversal of 221994162803 is 308261499122.

It is a happy number.

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

It is not a de Polignac number, because 221994162803 - 2¹⁴ = 221994146419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221994161803) 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, 30431528 + ... + 30438821.

It is an arithmetic number, because the mean of its divisors is an integer number (31774322700).

Almost surely, 2^221994162803 is an apocalyptic number.

221994162803 is a deficient number, since it is larger than the sum of its proper divisors (32200418797).

221994162803 is an equidigital number, since it uses as much as digits as its factorization.

221994162803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60870877.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 221994162803 in words is "two hundred twenty-one billion, nine hundred ninety-four million, one hundred sixty-two thousand, eight hundred three".