20101001211011 has 8 divisors (see below), whose sum is σ = 22973612895744. Its totient is φ = 17228649547080.

The previous prime is 20101001210957. The next prime is 20101001211041. The reversal of 20101001211011 is 11011210010102.

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 20101001211011 - 2¹⁸ = 20101000948867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20101001210983 and 20101001211001.

It is not an unprimeable number, because it can be changed into a prime (20101001211041) 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, 64839515 + ... + 65148788.

It is an arithmetic number, because the mean of its divisors is an integer number (2871701611968).

Almost surely, 2^{20101001211011} is an apocalyptic number.

20101001211011 is a deficient number, since it is larger than the sum of its proper divisors (2872611684733).

20101001211011 is a wasteful number, since it uses less digits than its factorization.

20101001211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130010401.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20101001211011 its reverse (11011210010102), we get a palindrome (31112211221113).

The spelling of 20101001211011 in words is "twenty trillion, one hundred one billion, one million, two hundred eleven thousand, eleven".