101211111009979 has 8 divisors (see below), whose sum is σ = 104506959869312. Its totient is φ = 97917198045120.

The previous prime is 101211111009977. The next prime is 101211111009997. The reversal of 101211111009979 is 979900111112101.

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 101211111009979 - 2¹ = 101211111009977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101211111009973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483867354 + ... + 484076479.

It is an arithmetic number, because the mean of its divisors is an integer number (13063369983664).

Almost surely, 2^{101211111009979} is an apocalyptic number.

101211111009979 is a deficient number, since it is larger than the sum of its proper divisors (3295848859333).

101211111009979 is an equidigital number, since it uses as much as digits as its factorization.

101211111009979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967947237.

The product of its (nonzero) digits is 10206, while the sum is 43.

The spelling of 101211111009979 in words is "one hundred one trillion, two hundred eleven billion, one hundred eleven million, nine thousand, nine hundred seventy-nine".