1222151244025 has 12 divisors (see below), whose sum is σ = 1518631372800. Its totient is φ = 975679814480.

The previous prime is 1222151244023. The next prime is 1222151244037. The reversal of 1222151244025 is 5204421512221.

It is not a de Polignac number, because 1222151244025 - 2¹ = 1222151244023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222151244023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51017305 + ... + 51041254.

It is an arithmetic number, because the mean of its divisors is an integer number (126552614400).

Almost surely, 2^{1222151244025} is an apocalyptic number.

It is an amenable number.

1222151244025 is a deficient number, since it is larger than the sum of its proper divisors (296480128775).

1222151244025 is a wasteful number, since it uses less digits than its factorization.

1222151244025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102059048 (or 102059043 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 1222151244025 its reverse (5204421512221), we get a palindrome (6426572756246).

The spelling of 1222151244025 in words is "one trillion, two hundred twenty-two billion, one hundred fifty-one million, two hundred forty-four thousand, twenty-five".