20011110221001 has 8 divisors (see below), whose sum is σ = 27057275792064. Its totient is φ = 13152842398640.

The previous prime is 20011110220993. The next prime is 20011110221023. The reversal of 20011110221001 is 10012201111002.

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 20011110221001 - 2³ = 20011110220993 is a prime.

It is a super-2 number, since 2×20011110221001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20011110291001) 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, 46974436926 + ... + 46974437351.

It is an arithmetic number, because the mean of its divisors is an integer number (3382159474008).

Almost surely, 2^{20011110221001} is an apocalyptic number.

It is an amenable number.

20011110221001 is a deficient number, since it is larger than the sum of its proper divisors (7046165571063).

20011110221001 is an equidigital number, since it uses as much as digits as its factorization.

20011110221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93948874351.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20011110221001 its reverse (10012201111002), we get a palindrome (30023311332003).

The spelling of 20011110221001 in words is "twenty trillion, eleven billion, one hundred ten million, two hundred twenty-one thousand, one".