2122212222122 has 16 divisors (see below), whose sum is σ = 3517118978112. Its totient is φ = 955266882240.

The previous prime is 2122212222121. The next prime is 2122212222133. The reversal of 2122212222122 is 2212222122212.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 (2122212222121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1356912404 + ... + 1356913967.

It is an arithmetic number, because the mean of its divisors is an integer number (219819936132).

Almost surely, 2^{2122212222122} is an apocalyptic number.

2122212222122 is a deficient number, since it is larger than the sum of its proper divisors (1394906755990).

2122212222122 is a wasteful number, since it uses less digits than its factorization.

2122212222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713826413.

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

Adding to 2122212222122 its reverse (2212222122212), we get a palindrome (4334434344334).

The spelling of 2122212222122 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twenty-two".