2211222012122 has 8 divisors (see below), whose sum is σ = 3511940842836. Its totient is φ = 1040575064512.

The previous prime is 2211222012121. The next prime is 2211222012127. The reversal of 2211222012122 is 2212102221122.

It can be written as a sum of positive squares in 2 ways, for example, as 1751173175761 + 460048836361 = 1323319^2 + 678269^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2211222012094 and 2211222012103.

It is not an unprimeable number, because it can be changed into a prime (2211222012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32517970733 + ... + 32517970800.

Almost surely, 2^{2211222012122} is an apocalyptic number.

2211222012122 is a deficient number, since it is larger than the sum of its proper divisors (1300718830714).

2211222012122 is a wasteful number, since it uses less digits than its factorization.

2211222012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65035941552.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2211222012122 its reverse (2212102221122), we get a palindrome (4423324233244).

The spelling of 2211222012122 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, twelve thousand, one hundred twenty-two".