21202022112201 has 12 divisors (see below), whose sum is σ = 35000163486912. Its totient is φ = 12115441206936.

The previous prime is 21202022112191. The next prime is 21202022112241. The reversal of 21202022112201 is 10221122020212.

It is a happy number.

21202022112201 is a `hidden beast` number, since 21 + 202 + 0 + 221 + 1 + 220 + 1 = 666.

It is not a de Polignac number, because 21202022112201 - 2¹¹ = 21202022110153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21202022112241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168270016701 + ... + 168270016826.

It is an arithmetic number, because the mean of its divisors is an integer number (2916680290576).

Almost surely, 2^{21202022112201} is an apocalyptic number.

21202022112201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21202022112201 is a deficient number, since it is larger than the sum of its proper divisors (13798141374711).

21202022112201 is a wasteful number, since it uses less digits than its factorization.

21202022112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336540033540 (or 336540033537 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 21202022112201 its reverse (10221122020212), we get a palindrome (31423144132413).

The spelling of 21202022112201 in words is "twenty-one trillion, two hundred two billion, twenty-two million, one hundred twelve thousand, two hundred one".