2222122122 has 48 divisors (see below), whose sum is σ = 5561255232. Its totient is φ = 633759360.

The previous prime is 2222122121. The next prime is 2222122127. The reversal of 2222122122 is 2212212222.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a junction number, because it is equal to n+sod(n) for n = 2222122095 and 2222122104.

It is not an unprimeable number, because it can be changed into a prime (2222122121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326718 + ... + 333449.

It is an arithmetic number, because the mean of its divisors is an integer number (115859484).

Almost surely, 2^2222122122 is an apocalyptic number.

2222122122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2222122122 is an abundant number, since it is smaller than the sum of its proper divisors (3339133110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2222122122 is a wasteful number, since it uses less digits than its factorization.

2222122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660203 (or 660200 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 2222122122 is about 47139.3903439576. The cubic root of 2222122122 is about 1304.9362861394.

Adding to 2222122122 its reverse (2212212222), we get a palindrome (4434334344).

It can be divided in two parts, 22 and 22122122, that multiplied together give a palindrome (486686684).

The spelling of 2222122122 in words is "two billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".