222201022021 has 4 divisors (see below), whose sum is σ = 242401114944. Its totient is φ = 202000929100.

The previous prime is 222201022013. The next prime is 222201022031. The reversal of 222201022021 is 120220102222.

222201022021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 222201022021 - 2³ = 222201022013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222201021986 and 222201022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222201022031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10100046445 + ... + 10100046466.

It is an arithmetic number, because the mean of its divisors is an integer number (60600278736).

Almost surely, 2^222201022021 is an apocalyptic number.

It is an amenable number.

222201022021 is a deficient number, since it is larger than the sum of its proper divisors (20200092923).

222201022021 is a wasteful number, since it uses less digits than its factorization.

222201022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20200092922.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222201022021 its reverse (120220102222), we get a palindrome (342421124243).

The spelling of 222201022021 in words is "two hundred twenty-two billion, two hundred one million, twenty-two thousand, twenty-one".