222220002221001 has 96 divisors (see below), whose sum is σ = 352547625830400. Its totient is φ = 134388415025280.

The previous prime is 222220002220949. The next prime is 222220002221047. The reversal of 222220002221001 is 100122200022222.

222220002221001 is a `hidden beast` number, since 222 + 220 + 0 + 0 + 2 + 221 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 222220002221001 - 2¹⁰ = 222220002219977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222220002221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 152724646 + ... + 154172816.

It is an arithmetic number, because the mean of its divisors is an integer number (3672371102400).

Almost surely, 2^{222220002221001} is an apocalyptic number.

It is an amenable number.

222220002221001 is a deficient number, since it is larger than the sum of its proper divisors (130327623609399).

222220002221001 is a wasteful number, since it uses less digits than its factorization.

222220002221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448619 (or 1448616 counting only the distinct ones).

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

Adding to 222220002221001 its reverse (100122200022222), we get a palindrome (322342202243223).

The spelling of 222220002221001 in words is "two hundred twenty-two trillion, two hundred twenty billion, two million, two hundred twenty-one thousand, one".