10001220011011 has 4 divisors (see below), whose sum is σ = 10033378275024. Its totient is φ = 9969061747000.

The previous prime is 10001220010987. The next prime is 10001220011047. The reversal of 10001220011011 is 11011002210001.

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

It is a cyclic number.

It is not a de Polignac number, because 10001220011011 - 2²⁵ = 10001186456579 is a prime.

It is a super-2 number, since 2×10001220011011² (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 (10001220011311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16079131540 + ... + 16079132161.

It is an arithmetic number, because the mean of its divisors is an integer number (2508344568756).

Almost surely, 2^{10001220011011} is an apocalyptic number.

10001220011011 is a deficient number, since it is larger than the sum of its proper divisors (32158264013).

10001220011011 is an equidigital number, since it uses as much as digits as its factorization.

10001220011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32158264012.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10001220011011 its reverse (11011002210001), we get a palindrome (21012222221012).

The spelling of 10001220011011 in words is "ten trillion, one billion, two hundred twenty million, eleven thousand, eleven".