20221120201001 has 4 divisors (see below), whose sum is σ = 20421329312004. Its totient is φ = 20020911090000.

The previous prime is 20221120200973. The next prime is 20221120201109. The reversal of 20221120201001 is 10010202112202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10594217775376 + 9626902425625 = 3254876^2 + 3102725^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221120201001 - 2²² = 20221116006697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221120203001) 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 3 ways as a sum of consecutive naturals, for example, 100104555350 + ... + 100104555551.

It is an arithmetic number, because the mean of its divisors is an integer number (5105332328001).

Almost surely, 2^{20221120201001} is an apocalyptic number.

It is an amenable number.

20221120201001 is a deficient number, since it is larger than the sum of its proper divisors (200209111003).

20221120201001 is a wasteful number, since it uses less digits than its factorization.

20221120201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200209111002.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20221120201001 its reverse (10010202112202), we get a palindrome (30231322313203).

The spelling of 20221120201001 in words is "twenty trillion, two hundred twenty-one billion, one hundred twenty million, two hundred one thousand, one".