1212122525242 has 32 divisors (see below), whose sum is σ = 1846858727232. Its totient is φ = 596538255744.

The previous prime is 1212122525231. The next prime is 1212122525269. The reversal of 1212122525242 is 2425252212121.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 167347273 + ... + 167354515.

It is an arithmetic number, because the mean of its divisors is an integer number (57714335226).

Almost surely, 2^{1212122525242} is an apocalyptic number.

1212122525242 is a deficient number, since it is larger than the sum of its proper divisors (634736201990).

1212122525242 is a wasteful number, since it uses less digits than its factorization.

1212122525242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9502.

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

Adding to 1212122525242 its reverse (2425252212121), we get a palindrome (3637374737363).

The spelling of 1212122525242 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, five hundred twenty-five thousand, two hundred forty-two".