22112001012021 has 16 divisors (see below), whose sum is σ = 29588356809408. Its totient is φ = 14688584064000.

The previous prime is 22112001011987. The next prime is 22112001012047. The reversal of 22112001012021 is 12021010021122.

It is not a de Polignac number, because 22112001012021 - 2¹⁰ = 22112001010997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112001012091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10869555 + ... + 12742496.

It is an arithmetic number, because the mean of its divisors is an integer number (1849272300588).

Almost surely, 2^{22112001012021} is an apocalyptic number.

It is an amenable number.

22112001012021 is a deficient number, since it is larger than the sum of its proper divisors (7476355797387).

22112001012021 is a wasteful number, since it uses less digits than its factorization.

22112001012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23613172.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22112001012021 its reverse (12021010021122), we get a palindrome (34133011033143).

The spelling of 22112001012021 in words is "twenty-two trillion, one hundred twelve billion, one million, twelve thousand, twenty-one".