20011112202001 has 8 divisors (see below), whose sum is σ = 20018742283584. Its totient is φ = 20003482633680.

The previous prime is 20011112201999. The next prime is 20011112202017. The reversal of 20011112202001 is 10020221111002.

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 20011112202001 - 2¹ = 20011112201999 is a prime.

It is a super-2 number, since 2×20011112202001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011112202041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89710330 + ... + 89933116.

It is an arithmetic number, because the mean of its divisors is an integer number (2502342785448).

Almost surely, 2^{20011112202001} is an apocalyptic number.

It is an amenable number.

20011112202001 is a deficient number, since it is larger than the sum of its proper divisors (7630081583).

20011112202001 is a wasteful number, since it uses less digits than its factorization.

20011112202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256631.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20011112202001 its reverse (10020221111002), we get a palindrome (30031333313003).

The spelling of 20011112202001 in words is "twenty trillion, eleven billion, one hundred twelve million, two hundred two thousand, one".