1202221221225 has 24 divisors (see below), whose sum is σ = 1988627829792. Its totient is φ = 640876454400.

The previous prime is 1202221221209. The next prime is 1202221221281. The reversal of 1202221221225 is 5221221222021.

It is not a de Polignac number, because 1202221221225 - 2⁴ = 1202221221209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202221221195 and 1202221221204.

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, 3695347 + ... + 4007496.

It is an arithmetic number, because the mean of its divisors is an integer number (82859492908).

Almost surely, 2^{1202221221225} is an apocalyptic number.

1202221221225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1202221221225 is a deficient number, since it is larger than the sum of its proper divisors (786406608567).

1202221221225 is a wasteful number, since it uses less digits than its factorization.

1202221221225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7704937 (or 7704932 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 1202221221225 its reverse (5221221222021), we get a palindrome (6423442443246).

The spelling of 1202221221225 in words is "one trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-five".