222101022021021 has 48 divisors (see below), whose sum is σ = 393285604263552. Its totient is φ = 118850045212800.

The previous prime is 222101022020921. The next prime is 222101022021023. The reversal of 222101022021021 is 120120220101222.

It is a happy number.

222101022021021 is a `hidden beast` number, since 2 + 2 + 210 + 1 + 0 + 220 + 210 + 21 = 666.

It is not a de Polignac number, because 222101022021021 - 2¹⁰ = 222101022019997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222101022020985 and 222101022021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101022021023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3751550110 + ... + 3751609311.

It is an arithmetic number, because the mean of its divisors is an integer number (8193450088824).

Almost surely, 2^{222101022021021} is an apocalyptic number.

It is an amenable number.

222101022021021 is a deficient number, since it is larger than the sum of its proper divisors (171184582242531).

222101022021021 is a wasteful number, since it uses less digits than its factorization.

222101022021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7503159474 (or 7503159471 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222101022021021 its reverse (120120220101222), we get a palindrome (342221242122243).

The spelling of 222101022021021 in words is "two hundred twenty-two trillion, one hundred one billion, twenty-two million, twenty-one thousand, twenty-one".