2122388730 has 448 divisors, whose sum is σ = 7554816000. Its totient is φ = 415704960.

The previous prime is 2122388699. The next prime is 2122388761. The reversal of 2122388730 is 378832212.

It is a happy number.

2122388730 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2122388699) and next prime (2122388761).

It is a super-3 number, since 3×2122388730³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 10665171 + ... + 10665369.

Almost surely, 2^2122388730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122388730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3777408000).

2122388730 is an abundant number, since it is smaller than the sum of its proper divisors (5432427270).

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

2122388730 is a wasteful number, since it uses less digits than its factorization.

2122388730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 2122388730 is about 46069.3903801646. The cubic root of 2122388730 is about 1285.1139668888.

The spelling of 2122388730 in words is "two billion, one hundred twenty-two million, three hundred eighty-eight thousand, seven hundred thirty".