101211110001111 has 32 divisors (see below), whose sum is σ = 147446764819200. Its totient is φ = 61244056558080.

The previous prime is 101211110001103. The next prime is 101211110001139. The reversal of 101211110001111 is 111100011112101.

It is not a de Polignac number, because 101211110001111 - 2³ = 101211110001103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211110001191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52947345 + ... + 54825573.

It is an arithmetic number, because the mean of its divisors is an integer number (4607711400600).

Almost surely, 2^{101211110001111} is an apocalyptic number.

101211110001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101211110001111 is a deficient number, since it is larger than the sum of its proper divisors (46235654818089).

101211110001111 is a wasteful number, since it uses less digits than its factorization.

101211110001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880799.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 101211110001111 its reverse (111100011112101), we get a palindrome (212311121113212).

The spelling of 101211110001111 in words is "one hundred one trillion, two hundred eleven billion, one hundred ten million, one thousand, one hundred eleven".