20112222012101 has 16 divisors (see below), whose sum is σ = 20867311808640. Its totient is φ = 19361245176000.

The previous prime is 20112222012067. The next prime is 20112222012229. The reversal of 20112222012101 is 10121022221102.

It is not a de Polignac number, because 20112222012101 - 2¹⁸ = 20112221749957 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20112222012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112222012401) 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, 144102851 + ... + 144242351.

It is an arithmetic number, because the mean of its divisors is an integer number (1304206988040).

Almost surely, 2^{20112222012101} is an apocalyptic number.

It is an amenable number.

20112222012101 is a deficient number, since it is larger than the sum of its proper divisors (755089796539).

20112222012101 is a wasteful number, since it uses less digits than its factorization.

20112222012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154204.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112222012101 its reverse (10121022221102), we get a palindrome (30233244233203).

The spelling of 20112222012101 in words is "twenty trillion, one hundred twelve billion, two hundred twenty-two million, twelve thousand, one hundred one".