21222022111101 has 24 divisors (see below), whose sum is σ = 35033767479360. Its totient is φ = 12126666197376.

The previous prime is 21222022111079. The next prime is 21222022111111. The reversal of 21222022111101 is 10111122022212.

21222022111101 is a `hidden beast` number, since 212 + 220 + 22 + 111 + 101 = 666.

It is not a de Polignac number, because 21222022111101 - 2¹⁰ = 21222022110077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222022111111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 995766 + ... + 6590568.

It is an arithmetic number, because the mean of its divisors is an integer number (1459740311640).

Almost surely, 2^{21222022111101} is an apocalyptic number.

21222022111101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21222022111101 is a deficient number, since it is larger than the sum of its proper divisors (13811745368259).

21222022111101 is a wasteful number, since it uses less digits than its factorization.

21222022111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655025 (or 5655022 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 21222022111101 its reverse (10111122022212), we get a palindrome (31333144133313).

It can be divided in two parts, 21222022111 and 101, that added together give a palindrome (21222022212).

The spelling of 21222022111101 in words is "twenty-one trillion, two hundred twenty-two billion, twenty-two million, one hundred eleven thousand, one hundred one".