2161214222 has 8 divisors (see below), whose sum is σ = 3320890272. Its totient is φ = 1054250800.

The previous prime is 2161214221. The next prime is 2161214239. The reversal of 2161214222 is 2224121612.

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

It is a super-3 number, since 3×2161214222³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161214221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13178054 + ... + 13178217.

It is an arithmetic number, because the mean of its divisors is an integer number (415111284).

Almost surely, 2^2161214222 is an apocalyptic number.

2161214222 is a deficient number, since it is larger than the sum of its proper divisors (1159676050).

2161214222 is a wasteful number, since it uses less digits than its factorization.

2161214222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26356314.

The product of its digits is 768, while the sum is 23.

The square root of 2161214222 is about 46488.8612680500. The cubic root of 2161214222 is about 1292.9029873499.

Adding to 2161214222 its reverse (2224121612), we get a palindrome (4385335834).

The spelling of 2161214222 in words is "two billion, one hundred sixty-one million, two hundred fourteen thousand, two hundred twenty-two".