121804722 has 72 divisors (see below), whose sum is σ = 296556624. Its totient is φ = 37453104.

The previous prime is 121804679. The next prime is 121804723. The reversal of 121804722 is 227408121.

121804722 is a `hidden beast` number, since 12 + 180 + 472 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (121804723) 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, 81393 + ... + 82875.

It is an arithmetic number, because the mean of its divisors is an integer number (4118842).

Almost surely, 2^121804722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121804722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148278312).

121804722 is an abundant number, since it is smaller than the sum of its proper divisors (174751902).

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

121804722 is a wasteful number, since it uses less digits than its factorization.

121804722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 121804722 is about 11036.5176573048. The cubic root of 121804722 is about 495.7028033371.

The spelling of 121804722 in words is "one hundred twenty-one million, eight hundred four thousand, seven hundred twenty-two".