21120212201 has 8 divisors (see below), whose sum is σ = 23041368000. Its totient is φ = 19199245840.

The previous prime is 21120212189. The next prime is 21120212237. The reversal of 21120212201 is 10221202112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21120212201 - 2³⁰ = 20046470377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21120212291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290735 + ... + 356043.

It is an arithmetic number, because the mean of its divisors is an integer number (2880171000).

Almost surely, 2^21120212201 is an apocalyptic number.

It is an amenable number.

21120212201 is a deficient number, since it is larger than the sum of its proper divisors (1921155799).

21120212201 is a wasteful number, since it uses less digits than its factorization.

21120212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94719.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21120212201 its reverse (10221202112), we get a palindrome (31341414313).

The spelling of 21120212201 in words is "twenty-one billion, one hundred twenty million, two hundred twelve thousand, two hundred one".