1200222001225 has 24 divisors (see below), whose sum is σ = 1604193358040. Its totient is φ = 885524037120.

The previous prime is 1200222001201. The next prime is 1200222001241. The reversal of 1200222001225 is 5221002220021.

It can be written as a sum of positive squares in 12 ways, for example, as 1070771717961 + 129450283264 = 1034781^2 + 359792^2 .

It is not a de Polignac number, because 1200222001225 - 2⁹ = 1200222000713 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, 1290060 + ... + 2016109.

Almost surely, 2^{1200222001225} is an apocalyptic number.

It is an amenable number.

1200222001225 is a deficient number, since it is larger than the sum of its proper divisors (403971356815).

1200222001225 is a wasteful number, since it uses less digits than its factorization.

1200222001225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307309 (or 3307304 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 1200222001225 its reverse (5221002220021), we get a palindrome (6421224221246).

The spelling of 1200222001225 in words is "one trillion, two hundred billion, two hundred twenty-two million, one thousand, two hundred twenty-five".