221727506233 has 16 divisors (see below), whose sum is σ = 232703798400. Its totient is φ = 210975842560.

The previous prime is 221727506207. The next prime is 221727506243. The reversal of 221727506233 is 332605727122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221727506233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221727506243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5041185 + ... + 5084977.

It is an arithmetic number, because the mean of its divisors is an integer number (14543987400).

Almost surely, 2^221727506233 is an apocalyptic number.

It is an amenable number.

221727506233 is a deficient number, since it is larger than the sum of its proper divisors (10976292167).

221727506233 is a wasteful number, since it uses less digits than its factorization.

221727506233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46352.

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 221727506233 in words is "two hundred twenty-one billion, seven hundred twenty-seven million, five hundred six thousand, two hundred thirty-three".