1112102021 has 16 divisors (see below), whose sum is σ = 1153211904. Its totient is φ = 1071917184.

The previous prime is 1112102009. The next prime is 1112102083. The reversal of 1112102021 is 1202012111.

It is a cyclic number.

It is not a de Polignac number, because 1112102021 - 2¹⁸ = 1111839877 is a prime.

It is a super-2 number, since 2×1112102021² = 2473541810224568882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1112101993 and 1112102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112122021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747140 + ... + 748626.

It is an arithmetic number, because the mean of its divisors is an integer number (72075744).

Almost surely, 2^1112102021 is an apocalyptic number.

It is an amenable number.

1112102021 is a deficient number, since it is larger than the sum of its proper divisors (41109883).

1112102021 is a wasteful number, since it uses less digits than its factorization.

1112102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1112102021 is about 33348.1936692229. The cubic root of 1112102021 is about 1036.0519759084.

Adding to 1112102021 its reverse (1202012111), we get a palindrome (2314114132).

The spelling of 1112102021 in words is "one billion, one hundred twelve million, one hundred two thousand, twenty-one".