121244530 has 32 divisors (see below), whose sum is σ = 239355648. Its totient is φ = 43852800.

The previous prime is 121244521. The next prime is 121244533. The reversal of 121244530 is 35442121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (121244533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18375 + ... + 24085.

It is an arithmetic number, because the mean of its divisors is an integer number (7479864).

Almost surely, 2^121244530 is an apocalyptic number.

121244530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121244530 is a deficient number, since it is larger than the sum of its proper divisors (118111118).

121244530 is a wasteful number, since it uses less digits than its factorization.

121244530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 121244530 is about 11011.1093900660. The cubic root of 121244530 is about 494.9417065660.

Adding to 121244530 its reverse (35442121), we get a palindrome (156686651).

The spelling of 121244530 in words is "one hundred twenty-one million, two hundred forty-four thousand, five hundred thirty".