2021162205 has 8 divisors (see below), whose sum is σ = 3233859552. Its totient is φ = 1077953168.

The previous prime is 2021162179. The next prime is 2021162243. The reversal of 2021162205 is 5022611202.

It is a happy number.

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 2021162205 - 2¹¹ = 2021160157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67372059 + ... + 67372088.

It is an arithmetic number, because the mean of its divisors is an integer number (404232444).

Almost surely, 2^2021162205 is an apocalyptic number.

It is an amenable number.

2021162205 is a deficient number, since it is larger than the sum of its proper divisors (1212697347).

2021162205 is a wasteful number, since it uses less digits than its factorization.

2021162205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134744155.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2021162205 is about 44957.3376102278. The cubic root of 2021162205 is about 1264.3492525944.

Adding to 2021162205 its reverse (5022611202), we get a palindrome (7043773407).

The spelling of 2021162205 in words is "two billion, twenty-one million, one hundred sixty-two thousand, two hundred five".