20122212112201 has 32 divisors (see below), whose sum is σ = 22272993066240. Its totient is φ = 18093525525504.

The previous prime is 20122212112183. The next prime is 20122212112207. The reversal of 20122212112201 is 10221121222102.

It is not a de Polignac number, because 20122212112201 - 2¹¹ = 20122212110153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (20122212112207) 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 31 ways as a sum of consecutive naturals, for example, 143196291 + ... + 143336743.

It is an arithmetic number, because the mean of its divisors is an integer number (696031033320).

Almost surely, 2^{20122212112201} is an apocalyptic number.

It is an amenable number.

20122212112201 is a deficient number, since it is larger than the sum of its proper divisors (2150780954039).

20122212112201 is a wasteful number, since it uses less digits than its factorization.

20122212112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143025.

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

Adding to 20122212112201 its reverse (10221121222102), we get a palindrome (30343333334303).

The spelling of 20122212112201 in words is "twenty trillion, one hundred twenty-two billion, two hundred twelve million, one hundred twelve thousand, two hundred one".