20120101222101 has 8 divisors (see below), whose sum is σ = 26826998003520. Its totient is φ = 13413302627712.

The previous prime is 20120101222099. The next prime is 20120101222139. The reversal of 20120101222101 is 10122210102102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20120101222101 - 2¹ = 20120101222099 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120101222301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24067281 + ... + 24889238.

It is an arithmetic number, because the mean of its divisors is an integer number (3353374750440).

Almost surely, 2^{20120101222101} is an apocalyptic number.

It is an amenable number.

20120101222101 is a deficient number, since it is larger than the sum of its proper divisors (6706896781419).

20120101222101 is a wasteful number, since it uses less digits than its factorization.

20120101222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49093515.

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

Adding to 20120101222101 its reverse (10122210102102), we get a palindrome (30242311324203).

The spelling of 20120101222101 in words is "twenty trillion, one hundred twenty billion, one hundred one million, two hundred twenty-two thousand, one hundred one".