222331420 has 12 divisors (see below), whose sum is σ = 466896024. Its totient is φ = 88932560.

The previous prime is 222331399. The next prime is 222331463. The reversal of 222331420 is 24133222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5558266 + ... + 5558305.

It is an arithmetic number, because the mean of its divisors is an integer number (38908002).

Almost surely, 2^222331420 is an apocalyptic number.

222331420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222331420 is an abundant number, since it is smaller than the sum of its proper divisors (244564604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222331420 is a wasteful number, since it uses less digits than its factorization.

222331420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11116580 (or 11116578 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 222331420 is about 14910.7820049788. The cubic root of 222331420 is about 605.8060607964.

Adding to 222331420 its reverse (24133222), we get a palindrome (246464642).

It can be divided in two parts, 22233 and 1420, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 222331420 in words is "two hundred twenty-two million, three hundred thirty-one thousand, four hundred twenty".