1212504425 has 12 divisors (see below), whose sum is σ = 1640188176. Its totient is φ = 881821200.

The previous prime is 1212504401. The next prime is 1212504443. The reversal of 1212504425 is 5244052121.

It is not a de Polignac number, because 1212504425 - 2¹⁶ = 1212438889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212504394 and 1212504403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2204279 + ... + 2204828.

It is an arithmetic number, because the mean of its divisors is an integer number (136682348).

Almost surely, 2^1212504425 is an apocalyptic number.

It is an amenable number.

1212504425 is a deficient number, since it is larger than the sum of its proper divisors (427683751).

1212504425 is a wasteful number, since it uses less digits than its factorization.

1212504425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409128 (or 4409123 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1212504425 is about 34821.0342321994. The cubic root of 1212504425 is about 1066.3369149431.

Adding to 1212504425 its reverse (5244052121), we get a palindrome (6456556546).

The spelling of 1212504425 in words is "one billion, two hundred twelve million, five hundred four thousand, four hundred twenty-five".