101211109999 has 8 divisors (see below), whose sum is σ = 101504478992. Its totient is φ = 100918016640.

The previous prime is 101211109969. The next prime is 101211110003. The reversal of 101211109999 is 999901112101.

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 101211109999 - 2⁹ = 101211109487 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 (101211109939) 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, 678229 + ... + 813889.

It is an arithmetic number, because the mean of its divisors is an integer number (12688059874).

Almost surely, 2^101211109999 is an apocalyptic number.

101211109999 is a deficient number, since it is larger than the sum of its proper divisors (293368993).

101211109999 is a wasteful number, since it uses less digits than its factorization.

101211109999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137817.

The product of its (nonzero) digits is 13122, while the sum is 43.

The spelling of 101211109999 in words is "one hundred one billion, two hundred eleven million, one hundred nine thousand, nine hundred ninety-nine".