222551064 has 96 divisors (see below), whose sum is σ = 628992000. Its totient is φ = 73719072.

The previous prime is 222551057. The next prime is 222551083. The reversal of 222551064 is 460155222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 464377 + ... + 464855.

It is an arithmetic number, because the mean of its divisors is an integer number (6552000).

Almost surely, 2^222551064 is an apocalyptic number.

222551064 is a gapful number since it is divisible by the number (24) 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 222551064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314496000).

222551064 is an abundant number, since it is smaller than the sum of its proper divisors (406440936).

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

222551064 is a wasteful number, since it uses less digits than its factorization.

222551064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 222551064 is about 14918.1454611490. The cubic root of 222551064 is about 606.0054896081.

The spelling of 222551064 in words is "two hundred twenty-two million, five hundred fifty-one thousand, sixty-four".