2143915122 has 32 divisors (see below), whose sum is σ = 4518360000. Its totient is φ = 676297728.

The previous prime is 2143915121. The next prime is 2143915139. The reversal of 2143915122 is 2215193412.

It is a super-3 number, since 3×2143915122³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2143915122.

It is not an unprimeable number, because it can be changed into a prime (2143915121) 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, 101754 + ... + 121002.

It is an arithmetic number, because the mean of its divisors is an integer number (141198750).

Almost surely, 2^2143915122 is an apocalyptic number.

2143915122 is an abundant number, since it is smaller than the sum of its proper divisors (2374444878).

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

2143915122 is a wasteful number, since it uses less digits than its factorization.

2143915122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20250.

The product of its digits is 4320, while the sum is 30.

The square root of 2143915122 is about 46302.4310592867. The cubic root of 2143915122 is about 1289.4441292333. Note that the first 3 decimals are identical.

The spelling of 2143915122 in words is "two billion, one hundred forty-three million, nine hundred fifteen thousand, one hundred twenty-two".