112121010 has 80 divisors (see below), whose sum is σ = 303831000. Its totient is φ = 29666304.

The previous prime is 112121003. The next prime is 112121027. The reversal of 112121010 is 10121211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32251041 + 79869969 = 5679^2 + 8937^2 .

It is a super-2 number, since 2×112121010² = 25142241766840200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 112120983 and 112121001.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 120226 + ... + 121154.

Almost surely, 2^112121010 is an apocalyptic number.

112121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 112121010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151915500).

112121010 is an abundant number, since it is smaller than the sum of its proper divisors (191709990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112121010 is a wasteful number, since it uses less digits than its factorization.

112121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 112121010 is about 10588.7208859239. The cubic root of 112121010 is about 482.2019923234.

Adding to 112121010 its reverse (10121211), we get a palindrome (122242221).

The spelling of 112121010 in words is "one hundred twelve million, one hundred twenty-one thousand, ten".