20221211110101 has 16 divisors (see below), whose sum is σ = 26985655690560. Its totient is φ = 13468788682880.

The previous prime is 20221211110081. The next prime is 20221211110129. The reversal of 20221211110101 is 10101111212202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20221211110101 - 2¹⁴ = 20221211093717 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 (20221211110151) 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, 48612466 + ... + 49026668.

It is an arithmetic number, because the mean of its divisors is an integer number (1686603480660).

Almost surely, 2^{20221211110101} is an apocalyptic number.

It is an amenable number.

20221211110101 is a deficient number, since it is larger than the sum of its proper divisors (6764444580459).

20221211110101 is a wasteful number, since it uses less digits than its factorization.

20221211110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428676.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20221211110101 its reverse (10101111212202), we get a palindrome (30322322322303).

The spelling of 20221211110101 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, one hundred ten thousand, one hundred one".