221426675232007 has 4 divisors (see below), whose sum is σ = 253059057408016. Its totient is φ = 189794293056000.

The previous prime is 221426675231987. The next prime is 221426675232011. The reversal of 221426675232007 is 700232576624122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221426675232007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221426675232067) 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, 15816191087994 + ... + 15816191088007.

It is an arithmetic number, because the mean of its divisors is an integer number (63264764352004).

Almost surely, 2^{221426675232007} is an apocalyptic number.

221426675232007 is a deficient number, since it is larger than the sum of its proper divisors (31632382176009).

221426675232007 is an equidigital number, since it uses as much as digits as its factorization.

221426675232007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31632382176008.

The product of its (nonzero) digits is 3386880, while the sum is 49.

The spelling of 221426675232007 in words is "two hundred twenty-one trillion, four hundred twenty-six billion, six hundred seventy-five million, two hundred thirty-two thousand, seven".