112122021 has 64 divisors (see below), whose sum is σ = 185656320. Its totient is φ = 59304960.

The previous prime is 112122001. The next prime is 112122041. The reversal of 112122021 is 120221211.

It is an interprime number because it is at equal distance from previous prime (112122001) and next prime (112122041).

It is not a de Polignac number, because 112122021 - 2⁶ = 112121957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112121988 and 112122006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112122001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 714075 + ... + 714231.

It is an arithmetic number, because the mean of its divisors is an integer number (2900880).

Almost surely, 2^112122021 is an apocalyptic number.

112122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112122021 is a deficient number, since it is larger than the sum of its proper divisors (73534299).

112122021 is a wasteful number, since it uses less digits than its factorization.

112122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 112122021 is about 10588.7686252935. The cubic root of 112122021 is about 482.2034416645.

Adding to 112122021 its reverse (120221211), we get a palindrome (232343232).

The spelling of 112122021 in words is "one hundred twelve million, one hundred twenty-two thousand, twenty-one".