2122212154 has 8 divisors (see below), whose sum is σ = 3183677280. Its totient is φ = 1060986396.

The previous prime is 2122212151. The next prime is 2122212179. The reversal of 2122212154 is 4512122212.

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

It is not an unprimeable number, because it can be changed into a prime (2122212151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35734 + ... + 74305.

It is an arithmetic number, because the mean of its divisors is an integer number (397959660).

Almost surely, 2^2122212154 is an apocalyptic number.

2122212154 is a deficient number, since it is larger than the sum of its proper divisors (1061465126).

2122212154 is a wasteful number, since it uses less digits than its factorization.

2122212154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119684.

The product of its digits is 640, while the sum is 22.

The square root of 2122212154 is about 46067.4739268391. The cubic root of 2122212154 is about 1285.0783267673.

Adding to 2122212154 its reverse (4512122212), we get a palindrome (6634334366).

The spelling of 2122212154 in words is "two billion, one hundred twenty-two million, two hundred twelve thousand, one hundred fifty-four".