2161245022 has 8 divisors (see below), whose sum is σ = 3412492200. Its totient is φ = 1023747624.

The previous prime is 2161245019. The next prime is 2161245061. The reversal of 2161245022 is 2205421612.

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

It is a super-3 number, since 3×2161245022³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28437397 + ... + 28437472.

It is an arithmetic number, because the mean of its divisors is an integer number (426561525).

Almost surely, 2^2161245022 is an apocalyptic number.

2161245022 is a deficient number, since it is larger than the sum of its proper divisors (1251247178).

2161245022 is a wasteful number, since it uses less digits than its factorization.

2161245022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56874890.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2161245022 is about 46489.1925290169. The cubic root of 2161245022 is about 1292.9091291478.

Adding to 2161245022 its reverse (2205421612), we get a palindrome (4366666634).

The spelling of 2161245022 in words is "two billion, one hundred sixty-one million, two hundred forty-five thousand, twenty-two".