2143516122 has 192 divisors, whose sum is σ = 5660928000. Its totient is φ = 600929280.

The previous prime is 2143516091. The next prime is 2143516129. The reversal of 2143516122 is 2216153412.

2143516122 is a `hidden beast` number, since 2 + 1 + 43 + 5 + 1 + 612 + 2 = 666.

It is a super-2 number, since 2×2143516122² = 9189322730547837768, which contains 22 as substring.

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 (2143516129) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4773754 + ... + 4774202.

It is an arithmetic number, because the mean of its divisors is an integer number (29484000).

Almost surely, 2^2143516122 is an apocalyptic number.

2143516122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143516122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2830464000).

2143516122 is an abundant number, since it is smaller than the sum of its proper divisors (3517411878).

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

2143516122 is a wasteful number, since it uses less digits than its factorization.

2143516122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 531 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2143516122 is about 46298.1222297406. The cubic root of 2143516122 is about 1289.3641322654.

Adding to 2143516122 its reverse (2216153412), we get a palindrome (4359669534).

The spelling of 2143516122 in words is "two billion, one hundred forty-three million, five hundred sixteen thousand, one hundred twenty-two".