20011002211101 has 32 divisors (see below), whose sum is σ = 30014299800576. Its totient is φ = 11753719920000.

The previous prime is 20011002211061. The next prime is 20011002211121. The reversal of 20011002211101 is 10111220011002.

It is not a de Polignac number, because 20011002211101 - 2⁶ = 20011002211037 is a prime.

It is a super-2 number, since 2×20011002211101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011002211121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48769531 + ... + 49178136.

It is an arithmetic number, because the mean of its divisors is an integer number (937946868768).

Almost surely, 2^{20011002211101} is an apocalyptic number.

It is an amenable number.

20011002211101 is a deficient number, since it is larger than the sum of its proper divisors (10003297589475).

20011002211101 is a wasteful number, since it uses less digits than its factorization.

20011002211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97947873.

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

Adding to 20011002211101 its reverse (10111220011002), we get a palindrome (30122222222103).

The spelling of 20011002211101 in words is "twenty trillion, eleven billion, two million, two hundred eleven thousand, one hundred one".