221884002 has 16 divisors (see below), whose sum is σ = 493075680. Its totient is φ = 73961316.

The previous prime is 221883989. The next prime is 221884007. The reversal of 221884002 is 200488122.

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

It is not an unprimeable number, because it can be changed into a prime (221884007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2054428 + ... + 2054535.

It is an arithmetic number, because the mean of its divisors is an integer number (30817230).

Almost surely, 2^221884002 is an apocalyptic number.

221884002 is an abundant number, since it is smaller than the sum of its proper divisors (271191678).

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

221884002 is a wasteful number, since it uses less digits than its factorization.

221884002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108974 (or 4108968 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 221884002 is about 14895.7712791248. The cubic root of 221884002 is about 605.3994147808.

The spelling of 221884002 in words is "two hundred twenty-one million, eight hundred eighty-four thousand, two".