1212850994 has 4 divisors (see below), whose sum is σ = 1819276494. Its totient is φ = 606425496.

The previous prime is 1212850967. The next prime is 1212851089. The reversal of 1212850994 is 4990582121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4990582121 = 7 ⋅712940303.

It can be written as a sum of positive squares in only one way, i.e., 680949025 + 531901969 = 26095^2 + 23063^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303212747 + ... + 303212750.

Almost surely, 2^1212850994 is an apocalyptic number.

1212850994 is a deficient number, since it is larger than the sum of its proper divisors (606425500).

1212850994 is an equidigital number, since it uses as much as digits as its factorization.

1212850994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606425499.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 1212850994 is about 34826.0103083888. The cubic root of 1212850994 is about 1066.4385019576.

The spelling of 1212850994 in words is "one billion, two hundred twelve million, eight hundred fifty thousand, nine hundred ninety-four".