101211854911 has 4 divisors (see below), whose sum is σ = 101233847752. Its totient is φ = 101189862072.

The previous prime is 101211854839. The next prime is 101211854929. The reversal of 101211854911 is 119458112101.

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 101211854911 - 2¹⁷ = 101211723839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211854951) 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 3 ways as a sum of consecutive naturals, for example, 10989516 + ... + 10998721.

It is an arithmetic number, because the mean of its divisors is an integer number (25308461938).

Almost surely, 2^101211854911 is an apocalyptic number.

101211854911 is a deficient number, since it is larger than the sum of its proper divisors (21992841).

101211854911 is an equidigital number, since it uses as much as digits as its factorization.

101211854911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21992840.

The product of its (nonzero) digits is 2880, while the sum is 34.

The spelling of 101211854911 in words is "one hundred one billion, two hundred eleven million, eight hundred fifty-four thousand, nine hundred eleven".