121130244 has 36 divisors (see below), whose sum is σ = 322307440. Its totient is φ = 38251440.

The previous prime is 121130239. The next prime is 121130249. The reversal of 121130244 is 442031121.

It is an interprime number because it is at equal distance from previous prime (121130239) and next prime (121130249).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×121130244² = 29345072022999072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121130249) 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 11 ways as a sum of consecutive naturals, for example, 87862 + ... + 89229.

Almost surely, 2^121130244 is an apocalyptic number.

It is an amenable number.

121130244 is an abundant number, since it is smaller than the sum of its proper divisors (201177196).

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

121130244 is a wasteful number, since it uses less digits than its factorization.

121130244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177120 (or 177115 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 121130244 is about 11005.9185895590. The cubic root of 121130244 is about 494.7861457611.

Adding to 121130244 its reverse (442031121), we get a palindrome (563161365).

It can be divided in two parts, 1211302 and 44, that added together give a triangular number (1211346 = T₁₅₅₆).

The spelling of 121130244 in words is "one hundred twenty-one million, one hundred thirty thousand, two hundred forty-four".