20211022222001 has 8 divisors (see below), whose sum is σ = 21826344980160. Its totient is φ = 18604360712592.

The previous prime is 20211022221983. The next prime is 20211022222009. The reversal of 20211022222001 is 10022222011202.

It is a happy number.

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 20211022222001 - 2¹⁸ = 20211021959857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211022222009) 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 7 ways as a sum of consecutive naturals, for example, 2165307335 + ... + 2165316668.

It is an arithmetic number, because the mean of its divisors is an integer number (2728293122520).

Almost surely, 2^{20211022222001} is an apocalyptic number.

It is an amenable number.

20211022222001 is a deficient number, since it is larger than the sum of its proper divisors (1615322758159).

20211022222001 is a wasteful number, since it uses less digits than its factorization.

20211022222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4330624375.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20211022222001 its reverse (10022222011202), we get a palindrome (30233244233203).

The spelling of 20211022222001 in words is "twenty trillion, two hundred eleven billion, twenty-two million, two hundred twenty-two thousand, one".