1021102112111 has 16 divisors (see below), whose sum is σ = 1076426508960. Its totient is φ = 967124995200.

The previous prime is 1021102112087. The next prime is 1021102112153. The reversal of 1021102112111 is 1112112011201.

It is a cyclic number.

It is not a de Polignac number, because 1021102112111 - 2³⁴ = 1003922242927 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 (1021102112311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9480461 + ... + 9587561.

It is an arithmetic number, because the mean of its divisors is an integer number (67276656810).

Almost surely, 2^{1021102112111} is an apocalyptic number.

1021102112111 is a deficient number, since it is larger than the sum of its proper divisors (55324396849).

1021102112111 is a wasteful number, since it uses less digits than its factorization.

1021102112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113386.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1021102112111 its reverse (1112112011201), we get a palindrome (2133214123312).

The spelling of 1021102112111 in words is "one trillion, twenty-one billion, one hundred two million, one hundred twelve thousand, one hundred eleven".