211211120101 has 8 divisors (see below), whose sum is σ = 212170217184. Its totient is φ = 210252274800.

The previous prime is 211211120089. The next prime is 211211120177. The reversal of 211211120101 is 101021112112.

It is a happy number.

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 211211120101 - 2²⁷ = 211076902373 is a prime.

It is a super-2 number, since 2×211211120101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211211120501) 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, 1734646 + ... + 1852408.

It is an arithmetic number, because the mean of its divisors is an integer number (26521277148).

Almost surely, 2^211211120101 is an apocalyptic number.

It is an amenable number.

211211120101 is a deficient number, since it is larger than the sum of its proper divisors (959097083).

211211120101 is a wasteful number, since it uses less digits than its factorization.

211211120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125891.

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

Adding to 211211120101 its reverse (101021112112), we get a palindrome (312232232213).

The spelling of 211211120101 in words is "two hundred eleven billion, two hundred eleven million, one hundred twenty thousand, one hundred one".