122101210221 has 16 divisors (see below), whose sum is σ = 162995703360. Its totient is φ = 81303816960.

The previous prime is 122101210219. The next prime is 122101210243. The reversal of 122101210221 is 122012101221.

It is not a de Polignac number, because 122101210221 - 2¹ = 122101210219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122101210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101210921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13980426 + ... + 13989156.

It is an arithmetic number, because the mean of its divisors is an integer number (10187231460).

Almost surely, 2^122101210221 is an apocalyptic number.

It is an amenable number.

122101210221 is a deficient number, since it is larger than the sum of its proper divisors (40894493139).

122101210221 is a wasteful number, since it uses less digits than its factorization.

122101210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13756.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122101210221 its reverse (122012101221), we get a palindrome (244113311442).

The spelling of 122101210221 in words is "one hundred twenty-two billion, one hundred one million, two hundred ten thousand, two hundred twenty-one".