101021011112111 has 4 divisors (see below), whose sum is σ = 101792163868824. Its totient is φ = 100249858355400.

The previous prime is 101021011112089. The next prime is 101021011112117. The reversal of 101021011112111 is 111211110120101.

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 101021011112111 - 2¹⁴ = 101021011095727 is a prime.

It is a super-2 number, since 2×101021011112111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021011112117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385576378160 + ... + 385576378421.

It is an arithmetic number, because the mean of its divisors is an integer number (25448040967206).

Almost surely, 2^{101021011112111} is an apocalyptic number.

101021011112111 is a deficient number, since it is larger than the sum of its proper divisors (771152756713).

101021011112111 is an equidigital number, since it uses as much as digits as its factorization.

101021011112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771152756712.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 101021011112111 its reverse (111211110120101), we get a palindrome (212232121232212).

The spelling of 101021011112111 in words is "one hundred one trillion, twenty-one billion, eleven million, one hundred twelve thousand, one hundred eleven".