1216234022 has 4 divisors (see below), whose sum is σ = 1824351036. Its totient is φ = 608117010.

The previous prime is 1216233989. The next prime is 1216234037. The reversal of 1216234022 is 2204326121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2204326121 = 7573 ⋅291077.

It is a super-3 number, since 3×1216234022³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 304058504 + ... + 304058507.

It is an arithmetic number, because the mean of its divisors is an integer number (456087759).

Almost surely, 2^1216234022 is an apocalyptic number.

1216234022 is a deficient number, since it is larger than the sum of its proper divisors (608117014).

1216234022 is an equidigital number, since it uses as much as digits as its factorization.

1216234022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608117013.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1216234022 is about 34874.5469074510. The cubic root of 1216234022 is about 1067.4291271023.

The spelling of 1216234022 in words is "one billion, two hundred sixteen million, two hundred thirty-four thousand, twenty-two".