2121121324 has 12 divisors (see below), whose sum is σ = 4242242704. Its totient is φ = 909051984.

The previous prime is 2121121291. The next prime is 2121121337. The reversal of 2121121324 is 4231211212.

2121121324 is an admirable number.

It is a super-2 number, since 2×2121121324² = 8998311342255025952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37877139 + ... + 37877194.

Almost surely, 2^2121121324 is an apocalyptic number.

It is an amenable number.

2121121324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2121121324 is a wasteful number, since it uses less digits than its factorization.

2121121324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75754344 (or 75754342 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 2121121324 is about 46055.6329236718. The cubic root of 2121121324 is about 1284.8581096642.

Adding to 2121121324 its reverse (4231211212), we get a palindrome (6352332536).

The spelling of 2121121324 in words is "two billion, one hundred twenty-one million, one hundred twenty-one thousand, three hundred twenty-four".