222039801 has 9 divisors (see below), whose sum is σ = 320788741. Its totient is φ = 147996732.

The previous prime is 222039799. The next prime is 222039821. The reversal of 222039801 is 108930222.

It is a happy number.

The square root of 222039801 is 14901.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 222039801 - 2¹ = 222039799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222039821) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42220 + ... + 47186.

Almost surely, 2^222039801 is an apocalyptic number.

222039801 is the 14901-st square number.

222039801 is the 7451-st centered octagonal number.

It is an amenable number.

222039801 is a deficient number, since it is larger than the sum of its proper divisors (98748940).

222039801 is an frugal number, since it uses more digits than its factorization.

222039801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9940 (or 4970 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The cubic root of 222039801 is about 605.5410782250.

The spelling of 222039801 in words is "two hundred twenty-two million, thirty-nine thousand, eight hundred one".