101211120109 has 8 divisors (see below), whose sum is σ = 115212658752. Its totient is φ = 88009669440.

The previous prime is 101211120103. The next prime is 101211120113. The reversal of 101211120109 is 901021112101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101211120109 - 2²⁵ = 101177565677 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 (101211120103) 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, 200021724 + ... + 200022229.

It is an arithmetic number, because the mean of its divisors is an integer number (14401582344).

Almost surely, 2^101211120109 is an apocalyptic number.

It is an amenable number.

101211120109 is a deficient number, since it is larger than the sum of its proper divisors (14001538643).

101211120109 is a wasteful number, since it uses less digits than its factorization.

101211120109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400043987.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 101211120109 in words is "one hundred one billion, two hundred eleven million, one hundred twenty thousand, one hundred nine".