222242811 has 16 divisors (see below), whose sum is σ = 342150144. Its totient is φ = 125685504.

The previous prime is 222242807. The next prime is 222242821. The reversal of 222242811 is 118242222.

It is not a de Polignac number, because 222242811 - 2² = 222242807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222242821) 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, 52515 + ... + 56588.

It is an arithmetic number, because the mean of its divisors is an integer number (21384384).

Almost surely, 2^222242811 is an apocalyptic number.

222242811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

222242811 is a deficient number, since it is larger than the sum of its proper divisors (119907333).

222242811 is a wasteful number, since it uses less digits than its factorization.

222242811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109210.

The product of its digits is 1024, while the sum is 24.

The square root of 222242811 is about 14907.8104026044. The cubic root of 222242811 is about 605.7255698457.

The spelling of 222242811 in words is "two hundred twenty-two million, two hundred forty-two thousand, eight hundred eleven".