2122222122122 has 4 divisors (see below), whose sum is σ = 3183333183186. Its totient is φ = 1061111061060.

The previous prime is 2122222122121. The next prime is 2122222122151. The reversal of 2122222122122 is 2212212222212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1992024554881 + 130197567241 = 1411391^2 + 360829^2 .

It is a super-4 number, since 4×2122222122122⁴ (a number of 50 digits) contains 4444 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2122222122121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530555530529 + ... + 530555530532.

Almost surely, 2^{2122222122122} is an apocalyptic number.

2122222122122 is a deficient number, since it is larger than the sum of its proper divisors (1061111061064).

2122222122122 is a wasteful number, since it uses less digits than its factorization.

2122222122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061111061063.

The product of its digits is 1024, while the sum is 23.

Adding to 2122222122122 its reverse (2212212222212), we get a palindrome (4334434344334).

The spelling of 2122222122122 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".