222256020 has 48 divisors (see below), whose sum is σ = 711220608. Its totient is φ = 50801280.

The previous prime is 222255973. The next prime is 222256063. The reversal of 222256020 is 20652222.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 15 ways as a sum of consecutive naturals, for example, 264171 + ... + 265010.

It is an arithmetic number, because the mean of its divisors is an integer number (14817096).

Almost surely, 2^222256020 is an apocalyptic number.

222256020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222256020 is an abundant number, since it is smaller than the sum of its proper divisors (488964588).

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

222256020 is a wasteful number, since it uses less digits than its factorization.

222256020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529200 (or 529198 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 222256020 is about 14908.2534188281. The cubic root of 222256020 is about 605.7375700397.

The spelling of 222256020 in words is "two hundred twenty-two million, two hundred fifty-six thousand, twenty".