121130252 has 6 divisors (see below), whose sum is σ = 211977948. Its totient is φ = 60565124.

The previous prime is 121130249. The next prime is 121130257. The reversal of 121130252 is 252031121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121130252.

It is not an unprimeable number, because it can be changed into a prime (121130257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15141278 + ... + 15141285.

It is an arithmetic number, because the mean of its divisors is an integer number (35329658).

Almost surely, 2^121130252 is an apocalyptic number.

It is an amenable number.

121130252 is a deficient number, since it is larger than the sum of its proper divisors (90847696).

121130252 is a wasteful number, since it uses less digits than its factorization.

121130252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30282567 (or 30282565 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121130252 is about 11005.9189529998. The cubic root of 121130252 is about 494.7861566537.

Adding to 121130252 its reverse (252031121), we get a palindrome (373161373).

The spelling of 121130252 in words is "one hundred twenty-one million, one hundred thirty thousand, two hundred fifty-two".