222020022021 has 16 divisors (see below), whose sum is σ = 342117532800. Its totient is φ = 125443093248.

The previous prime is 222020022019. The next prime is 222020022047. The reversal of 222020022021 is 120220020222.

It is not a de Polignac number, because 222020022021 - 2¹ = 222020022019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222020022011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59393536 + ... + 59397273.

It is an arithmetic number, because the mean of its divisors is an integer number (21382345800).

Almost surely, 2^222020022021 is an apocalyptic number.

222020022021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222020022021 is a deficient number, since it is larger than the sum of its proper divisors (120097510779).

222020022021 is a wasteful number, since it uses less digits than its factorization.

222020022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118790908.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 222020022021 its reverse (120220020222), we get a palindrome (342240042243).

The spelling of 222020022021 in words is "two hundred twenty-two billion, twenty million, twenty-two thousand, twenty-one".