221024021122 has 16 divisors (see below), whose sum is σ = 336224300544. Its totient is φ = 108949428000.

The previous prime is 221024021107. The next prime is 221024021131. The reversal of 221024021122 is 221120420122.

221024021122 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 221024021122.

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, 3564847 + ... + 3626317.

It is an arithmetic number, because the mean of its divisors is an integer number (21014018784).

Almost surely, 2^221024021122 is an apocalyptic number.

221024021122 is a deficient number, since it is larger than the sum of its proper divisors (115200279422).

221024021122 is a wasteful number, since it uses less digits than its factorization.

221024021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86865.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221024021122 its reverse (221120420122), we get a palindrome (442144441244).

The spelling of 221024021122 in words is "two hundred twenty-one billion, twenty-four million, twenty-one thousand, one hundred twenty-two".