1222122021122 has 16 divisors (see below), whose sum is σ = 1934022281760. Its totient is φ = 577593124992.

The previous prime is 1222122021089. The next prime is 1222122021139. The reversal of 1222122021122 is 2211202212221.

It is a super-2 number, since 2×1222122021122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222122021094 and 1222122021103.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36282383 + ... + 36316050.

It is an arithmetic number, because the mean of its divisors is an integer number (120876392610).

Almost surely, 2^{1222122021122} is an apocalyptic number.

1222122021122 is a deficient number, since it is larger than the sum of its proper divisors (711900260638).

1222122021122 is a wasteful number, since it uses less digits than its factorization.

1222122021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72598897.

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

Adding to 1222122021122 its reverse (2211202212221), we get a palindrome (3433324233343).

The spelling of 1222122021122 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty-two".