182212121 has 8 divisors (see below), whose sum is σ = 224261184. Its totient is φ = 144167760.

The previous prime is 182212099. The next prime is 182212123. The reversal of 182212121 is 121212281.

182212121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 182212121 - 2¹⁰ = 182211097 is a prime.

182212121 is a modest number, since divided by 212121 gives 182 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 182212093 and 182212102.

It is not an unprimeable number, because it can be changed into a prime (182212123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001075 + ... + 1001256.

It is an arithmetic number, because the mean of its divisors is an integer number (28032648).

Almost surely, 2^182212121 is an apocalyptic number.

It is an amenable number.

182212121 is a deficient number, since it is larger than the sum of its proper divisors (42049063).

182212121 is a wasteful number, since it uses less digits than its factorization.

182212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002351.

The product of its digits is 128, while the sum is 20.

The square root of 182212121 is about 13498.5970011702. The cubic root of 182212121 is about 566.9251902665.

The spelling of 182212121 in words is "one hundred eighty-two million, two hundred twelve thousand, one hundred twenty-one".