1242204022 has 4 divisors (see below), whose sum is σ = 1863306036. Its totient is φ = 621102010.

The previous prime is 1242204017. The next prime is 1242204083. The reversal of 1242204022 is 2204022421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310551004 + ... + 310551007.

It is an arithmetic number, because the mean of its divisors is an integer number (465826509).

Almost surely, 2^1242204022 is an apocalyptic number.

1242204022 is a deficient number, since it is larger than the sum of its proper divisors (621102014).

1242204022 is an equidigital number, since it uses as much as digits as its factorization.

1242204022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621102013.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1242204022 is about 35244.9148388814. The cubic root of 1242204022 is about 1074.9732164230.

Adding to 1242204022 its reverse (2204022421), we get a palindrome (3446226443).

The spelling of 1242204022 in words is "one billion, two hundred forty-two million, two hundred four thousand, twenty-two".