20011010221011 has 8 divisors (see below), whose sum is σ = 26821039878144. Its totient is φ = 13270827022280.

The previous prime is 20011010221009. The next prime is 20011010221043. The reversal of 20011010221011 is 11012201011002.

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 20011010221011 - 2¹ = 20011010221009 is a prime.

It is a super-2 number, since 2×20011010221011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20011010221711) 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, 17461613931 + ... + 17461615076.

It is an arithmetic number, because the mean of its divisors is an integer number (3352629984768).

Almost surely, 2^{20011010221011} is an apocalyptic number.

20011010221011 is a deficient number, since it is larger than the sum of its proper divisors (6810029657133).

20011010221011 is a wasteful number, since it uses less digits than its factorization.

20011010221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34923229201.

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

Adding to 20011010221011 its reverse (11012201011002), we get a palindrome (31023211232013).

The spelling of 20011010221011 in words is "twenty trillion, eleven billion, ten million, two hundred twenty-one thousand, eleven".