221023002 has 16 divisors (see below), whose sum is σ = 442959552. Its totient is φ = 73522080.

The previous prime is 221022983. The next prime is 221023003. The reversal of 221023002 is 200320122.

It is not an unprimeable number, because it can be changed into a prime (221023003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 34899 + ... + 40742.

It is an arithmetic number, because the mean of its divisors is an integer number (27684972).

Almost surely, 2^221023002 is an apocalyptic number.

221023002 is an abundant number, since it is smaller than the sum of its proper divisors (221936550).

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

221023002 is a wasteful number, since it uses less digits than its factorization.

221023002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76133.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 221023002 is about 14866.8423681695. The cubic root of 221023002 is about 604.6153345590.

Adding to 221023002 its reverse (200320122), we get a palindrome (421343124).

The spelling of 221023002 in words is "two hundred twenty-one million, twenty-three thousand, two".