222026720 has 24 divisors (see below), whose sum is σ = 524538504. Its totient is φ = 88810624.

The previous prime is 222026713. The next prime is 222026737. The reversal of 222026720 is 27620222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693674 + ... + 693993.

It is an arithmetic number, because the mean of its divisors is an integer number (21855771).

Almost surely, 2^222026720 is an apocalyptic number.

222026720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222026720 is an abundant number, since it is smaller than the sum of its proper divisors (302511784).

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

222026720 is a wasteful number, since it uses less digits than its factorization.

222026720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387682 (or 1387674 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 222026720 is about 14900.5610632620. The cubic root of 222026720 is about 605.5291866056.

Adding to 222026720 its reverse (27620222), we get a palindrome (249646942).

The spelling of 222026720 in words is "two hundred twenty-two million, twenty-six thousand, seven hundred twenty".