222722788643 has 4 divisors (see below), whose sum is σ = 222725910888. Its totient is φ = 222719666400.

The previous prime is 222722788637. The next prime is 222722788693. The reversal of 222722788643 is 346887227222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346887227222 = 2 ⋅173443613611.

It is a cyclic number.

It is not a de Polignac number, because 222722788643 - 2¹⁰ = 222722787619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222722788693) 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, 1451558 + ... + 1597643.

It is an arithmetic number, because the mean of its divisors is an integer number (55681477722).

Almost surely, 2^222722788643 is an apocalyptic number.

222722788643 is a deficient number, since it is larger than the sum of its proper divisors (3122245).

222722788643 is an equidigital number, since it uses as much as digits as its factorization.

222722788643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122244.

The product of its digits is 7225344, while the sum is 53.

The spelling of 222722788643 in words is "two hundred twenty-two billion, seven hundred twenty-two million, seven hundred eighty-eight thousand, six hundred forty-three".