1222222002122 has 48 divisors (see below), whose sum is σ = 2036583406536. Its totient is φ = 549650534400.

The previous prime is 1222222002109. The next prime is 1222222002139. The reversal of 1222222002122 is 2212002222221.

It can be written as a sum of positive squares in 4 ways, for example, as 1149289058401 + 72932943721 = 1072049^2 + 270061^2 .

It is a super-2 number, since 2×1222222002122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222222002094 and 1222222002103.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96072722 + ... + 96085442.

Almost surely, 2^{1222222002122} is an apocalyptic number.

1222222002122 is a deficient number, since it is larger than the sum of its proper divisors (814361404414).

1222222002122 is a wasteful number, since it uses less digits than its factorization.

1222222002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16935 (or 16924 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1222222002122 its reverse (2212002222221), we get a palindrome (3434224224343).

The spelling of 1222222002122 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, two thousand, one hundred twenty-two".