1112112102021 has 4 divisors (see below), whose sum is σ = 1482816136032. Its totient is φ = 741408068012.

The previous prime is 1112112101939. The next prime is 1112112102037. The reversal of 1112112102021 is 1202012112111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1112112102021 - 2²¹ = 1112110004869 is a prime.

It is a super-2 number, since 2×1112112102021² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112112102091) 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, 185352017001 + ... + 185352017006.

It is an arithmetic number, because the mean of its divisors is an integer number (370704034008).

Almost surely, 2^{1112112102021} is an apocalyptic number.

It is an amenable number.

1112112102021 is a deficient number, since it is larger than the sum of its proper divisors (370704034011).

1112112102021 is an equidigital number, since it uses as much as digits as its factorization.

1112112102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370704034010.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1112112102021 its reverse (1202012112111), we get a palindrome (2314124214132).

The spelling of 1112112102021 in words is "one trillion, one hundred twelve billion, one hundred twelve million, one hundred two thousand, twenty-one".