222122020021 has 8 divisors (see below), whose sum is σ = 244714089888. Its totient is φ = 199929810000.

The previous prime is 222122019961. The next prime is 222122020031. The reversal of 222122020021 is 120020221222.

222122020021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 222122020021 - 2⁷ = 222122019893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222122019977 and 222122020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122020031) 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 7 ways as a sum of consecutive naturals, for example, 99963795 + ... + 99966016.

It is an arithmetic number, because the mean of its divisors is an integer number (30589261236).

Almost surely, 2^222122020021 is an apocalyptic number.

It is an amenable number.

222122020021 is a deficient number, since it is larger than the sum of its proper divisors (22592069867).

222122020021 is a wasteful number, since it uses less digits than its factorization.

222122020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199929923.

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

Adding to 222122020021 its reverse (120020221222), we get a palindrome (342142241243).

The spelling of 222122020021 in words is "two hundred twenty-two billion, one hundred twenty-two million, twenty thousand, twenty-one".