20211101201011 has 4 divisors (see below), whose sum is σ = 23098401372592. Its totient is φ = 17323801029432.

The previous prime is 20211101201009. The next prime is 20211101201021. The reversal of 20211101201011 is 11010210111202.

It is a happy number.

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 20211101201011 - 2¹ = 20211101201009 is a prime.

It is a super-2 number, since 2×20211101201011² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20211101200982 and 20211101201000.

It is not an unprimeable number, because it can be changed into a prime (20211101201021) 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, 1443650085780 + ... + 1443650085793.

It is an arithmetic number, because the mean of its divisors is an integer number (5774600343148).

Almost surely, 2^{20211101201011} is an apocalyptic number.

20211101201011 is a deficient number, since it is larger than the sum of its proper divisors (2887300171581).

20211101201011 is an equidigital number, since it uses as much as digits as its factorization.

20211101201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887300171580.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20211101201011 its reverse (11010210111202), we get a palindrome (31221311312213).

The spelling of 20211101201011 in words is "twenty trillion, two hundred eleven billion, one hundred one million, two hundred one thousand, eleven".