22120011200221 has 4 divisors (see below), whose sum is σ = 24130921309344. Its totient is φ = 20109101091100.

The previous prime is 22120011200207. The next prime is 22120011200227. The reversal of 22120011200221 is 12200211002122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22120011200221 - 2⁹ = 22120011199709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120011200195 and 22120011200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120011200227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005455054545 + ... + 1005455054566.

It is an arithmetic number, because the mean of its divisors is an integer number (6032730327336).

Almost surely, 2^{22120011200221} is an apocalyptic number.

It is an amenable number.

22120011200221 is a deficient number, since it is larger than the sum of its proper divisors (2010910109123).

22120011200221 is a wasteful number, since it uses less digits than its factorization.

22120011200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010910109122.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22120011200221 its reverse (12200211002122), we get a palindrome (34320222202343).

The spelling of 22120011200221 in words is "twenty-two trillion, one hundred twenty billion, eleven million, two hundred thousand, two hundred twenty-one".