12221210222101 has 16 divisors (see below), whose sum is σ = 12328513486848. Its totient is φ = 12114388915200.

The previous prime is 12221210222051. The next prime is 12221210222119. The reversal of 12221210222101 is 10122201212221.

It is a cyclic number.

It is not a de Polignac number, because 12221210222101 - 2¹⁹ = 12221209697813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221210222131) 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, 171690220 + ... + 171761386.

It is an arithmetic number, because the mean of its divisors is an integer number (770532092928).

Almost surely, 2^{12221210222101} is an apocalyptic number.

It is an amenable number.

12221210222101 is a deficient number, since it is larger than the sum of its proper divisors (107303264747).

12221210222101 is a wasteful number, since it uses less digits than its factorization.

12221210222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74532.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12221210222101 its reverse (10122201212221), we get a palindrome (22343411434322).

The spelling of 12221210222101 in words is "twelve trillion, two hundred twenty-one billion, two hundred ten million, two hundred twenty-two thousand, one hundred one".