211220011101 has 8 divisors (see below), whose sum is σ = 307229107104. Its totient is φ = 128012127920.

The previous prime is 211220011087. The next prime is 211220011127. The reversal of 211220011101 is 101110022112.

211220011101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211220011101 - 2⁵ = 211220011069 is a prime.

It is a super-2 number, since 2×211220011101² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220011001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3200303166 + ... + 3200303231.

It is an arithmetic number, because the mean of its divisors is an integer number (38403638388).

Almost surely, 2^211220011101 is an apocalyptic number.

It is an amenable number.

211220011101 is a deficient number, since it is larger than the sum of its proper divisors (96009096003).

211220011101 is a wasteful number, since it uses less digits than its factorization.

211220011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400606411.

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

Adding to 211220011101 its reverse (101110022112), we get a palindrome (312330033213).

The spelling of 211220011101 in words is "two hundred eleven billion, two hundred twenty million, eleven thousand, one hundred one".