222554420 has 48 divisors (see below), whose sum is σ = 519499008. Its totient is φ = 79397760.

The previous prime is 222554411. The next prime is 222554461. The reversal of 222554420 is 24455222.

222554420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222554420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2117 + ... + 21203.

It is an arithmetic number, because the mean of its divisors is an integer number (10822896).

Almost surely, 2^222554420 is an apocalyptic number.

222554420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222554420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259749504).

222554420 is an abundant number, since it is smaller than the sum of its proper divisors (296944588).

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

222554420 is a wasteful number, since it uses less digits than its factorization.

222554420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19160 (or 19158 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 222554420 is about 14918.2579411941. The cubic root of 222554420 is about 606.0085357169.

The spelling of 222554420 in words is "two hundred twenty-two million, five hundred fifty-four thousand, four hundred twenty".