121506996 has 48 divisors (see below), whose sum is σ = 307779584. Its totient is φ = 37086336.

The previous prime is 121506961. The next prime is 121506997. The reversal of 121506996 is 699605121.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121506997) 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, 16746 + ... + 22878.

Almost surely, 2^121506996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121506996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153889792).

121506996 is an abundant number, since it is smaller than the sum of its proper divisors (186272588).

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

121506996 is a wasteful number, since it uses less digits than its factorization.

121506996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280 (or 6278 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 121506996 is about 11023.0211829607. The cubic root of 121506996 is about 495.2985934411.

The spelling of 121506996 in words is "one hundred twenty-one million, five hundred six thousand, nine hundred ninety-six".