222022122021 has 24 divisors (see below), whose sum is σ = 369938073024. Its totient is φ = 125684081280.

The previous prime is 222022121969. The next prime is 222022122061. The reversal of 222022122021 is 120221220222.

222022122021 is a `hidden beast` number, since 2 + 220 + 221 + 220 + 2 + 1 = 666.

222022122021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222022122021 - 2¹⁵ = 222022089253 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222022121985 and 222022122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222022122061) 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 23 ways as a sum of consecutive naturals, for example, 16461300 + ... + 16474781.

It is an arithmetic number, because the mean of its divisors is an integer number (15414086376).

Almost surely, 2^222022122021 is an apocalyptic number.

222022122021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222022122021 is a deficient number, since it is larger than the sum of its proper divisors (147915951003).

222022122021 is a wasteful number, since it uses less digits than its factorization.

222022122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32936201 (or 32936198 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222022122021 its reverse (120221220222), we get a palindrome (342243342243).

The spelling of 222022122021 in words is "two hundred twenty-two billion, twenty-two million, one hundred twenty-two thousand, twenty-one".