121148712 has 144 divisors (see below), whose sum is σ = 356616000. Its totient is φ = 37132992.

The previous prime is 121148711. The next prime is 121148737. The reversal of 121148712 is 217841121.

It is not an unprimeable number, because it can be changed into a prime (121148711) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1533489 + ... + 1533567.

It is an arithmetic number, because the mean of its divisors is an integer number (2476500).

Almost surely, 2^121148712 is an apocalyptic number.

121148712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121148712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178308000).

121148712 is an abundant number, since it is smaller than the sum of its proper divisors (235467288).

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

121148712 is a wasteful number, since it uses less digits than its factorization.

121148712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 162 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 121148712 is about 11006.7575606988. The cubic root of 121148712 is about 494.8112901728.

Adding to 121148712 its reverse (217841121), we get a palindrome (338989833).

The spelling of 121148712 in words is "one hundred twenty-one million, one hundred forty-eight thousand, seven hundred twelve".