221151803699 has 32 divisors (see below), whose sum is σ = 235677302784. Its totient is φ = 207085317120.

The previous prime is 221151803669. The next prime is 221151803707. The reversal of 221151803699 is 996308151122.

It is a de Polignac number, because none of the positive numbers 2^k-221151803699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221151803629) 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 31 ways as a sum of consecutive naturals, for example, 154976024 + ... + 154977450.

It is an arithmetic number, because the mean of its divisors is an integer number (7364915712).

Almost surely, 2^221151803699 is an apocalyptic number.

221151803699 is a deficient number, since it is larger than the sum of its proper divisors (14525499085).

221151803699 is a wasteful number, since it uses less digits than its factorization.

221151803699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 221151803699 in words is "two hundred twenty-one billion, one hundred fifty-one million, eight hundred three thousand, six hundred ninety-nine".