1212300442 has 4 divisors (see below), whose sum is σ = 1818450666. Its totient is φ = 606150220.

The previous prime is 1212300437. The next prime is 1212300461. The reversal of 1212300442 is 2440032121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 639128961 + 573171481 = 25281^2 + 23941^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303075109 + ... + 303075112.

Almost surely, 2^1212300442 is an apocalyptic number.

1212300442 is a deficient number, since it is larger than the sum of its proper divisors (606150224).

1212300442 is an equidigital number, since it uses as much as digits as its factorization.

1212300442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606150223.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1212300442 is about 34818.1050891630. The cubic root of 1212300442 is about 1066.2771139788.

Adding to 1212300442 its reverse (2440032121), we get a palindrome (3652332563).

The spelling of 1212300442 in words is "one billion, two hundred twelve million, three hundred thousand, four hundred forty-two".