221012120202 has 64 divisors (see below), whose sum is σ = 459734413824. Its totient is φ = 70773073920.

The previous prime is 221012120149. The next prime is 221012120213. The reversal of 221012120202 is 202021210122.

221012120202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 9269248 + ... + 9293060.

It is an arithmetic number, because the mean of its divisors is an integer number (7183350216).

Almost surely, 2^221012120202 is an apocalyptic number.

221012120202 is an abundant number, since it is smaller than the sum of its proper divisors (238722293622).

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

221012120202 is a wasteful number, since it uses less digits than its factorization.

221012120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24383.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221012120202 its reverse (202021210122), we get a palindrome (423033330324).

The spelling of 221012120202 in words is "two hundred twenty-one billion, twelve million, one hundred twenty thousand, two hundred two".