1216046422 has 4 divisors (see below), whose sum is σ = 1824069636. Its totient is φ = 608023210.

The previous prime is 1216046413. The next prime is 1216046459. The reversal of 1216046422 is 2246406121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2246406121 = 809 ⋅2776769.

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, 304011604 + ... + 304011607.

It is an arithmetic number, because the mean of its divisors is an integer number (456017409).

Almost surely, 2^1216046422 is an apocalyptic number.

1216046422 is a deficient number, since it is larger than the sum of its proper divisors (608023214).

1216046422 is an equidigital number, since it uses as much as digits as its factorization.

1216046422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608023213.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1216046422 is about 34871.8571630477. The cubic root of 1216046422 is about 1067.3742418314.

The spelling of 1216046422 in words is "one billion, two hundred sixteen million, forty-six thousand, four hundred twenty-two".