210101221244 has 12 divisors (see below), whose sum is σ = 367693649568. Its totient is φ = 105045892800.

The previous prime is 210101221243. The next prime is 210101221249. The reversal of 210101221244 is 442122101012.

210101221244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101221243) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1078292 + ... + 1258139.

It is an arithmetic number, because the mean of its divisors is an integer number (30641137464).

Almost surely, 2^210101221244 is an apocalyptic number.

It is an amenable number.

210101221244 is a deficient number, since it is larger than the sum of its proper divisors (157592428324).

210101221244 is a wasteful number, since it uses less digits than its factorization.

210101221244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358916 (or 2358914 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 210101221244 its reverse (442122101012), we get a palindrome (652223322256).

The spelling of 210101221244 in words is "two hundred ten billion, one hundred one million, two hundred twenty-one thousand, two hundred forty-four".