221001223010 has 16 divisors (see below), whose sum is σ = 410634531072. Its totient is φ = 85548860400.

The previous prime is 221001222977. The next prime is 221001223081. The reversal of 221001223010 is 10322100122.

It is a happy number.

221001223010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356453276 + ... + 356453895.

It is an arithmetic number, because the mean of its divisors is an integer number (25664658192).

Almost surely, 2^221001223010 is an apocalyptic number.

221001223010 is a deficient number, since it is larger than the sum of its proper divisors (189633308062).

221001223010 is a wasteful number, since it uses less digits than its factorization.

221001223010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712907209.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 221001223010 its reverse (10322100122), we get a palindrome (231323323132).

The spelling of 221001223010 in words is "two hundred twenty-one billion, one million, two hundred twenty-three thousand, ten".