1222112001225 has 24 divisors (see below), whose sum is σ = 2126903695840. Its totient is φ = 617488168320.

The previous prime is 1222112001217. The next prime is 1222112001239. The reversal of 1222112001225 is 5221002112221.

It is not a de Polignac number, because 1222112001225 - 2³ = 1222112001217 is a prime.

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, 428809804 + ... + 428812653.

Almost surely, 2^{1222112001225} is an apocalyptic number.

1222112001225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222112001225 is a deficient number, since it is larger than the sum of its proper divisors (904791694615).

1222112001225 is a wasteful number, since it uses less digits than its factorization.

1222112001225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857622489 (or 857622484 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 1222112001225 its reverse (5221002112221), we get a palindrome (6443114113446).

The spelling of 1222112001225 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, one thousand, two hundred twenty-five".