1213216614 has 24 divisors (see below), whose sum is σ = 2766986040. Its totient is φ = 383120928.

The previous prime is 1213216607. The next prime is 1213216621. The reversal of 1213216614 is 4166123121.

It is a happy number.

1213216614 is a `hidden beast` number, since 1 + 2 + 1 + 32 + 16 + 614 = 666.

It is an interprime number because it is at equal distance from previous prime (1213216607) and next prime (1213216621).

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 in 11 ways as a sum of consecutive naturals, for example, 1773367 + ... + 1774050.

It is an arithmetic number, because the mean of its divisors is an integer number (115291085).

Almost surely, 2^1213216614 is an apocalyptic number.

1213216614 is an abundant number, since it is smaller than the sum of its proper divisors (1553769426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213216614 is a wasteful number, since it uses less digits than its factorization.

1213216614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547444 (or 3547441 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1213216614 is about 34831.2591503666. The cubic root of 1213216614 is about 1066.5456522652.

Adding to 1213216614 its reverse (4166123121), we get a palindrome (5379339735).

The spelling of 1213216614 in words is "one billion, two hundred thirteen million, two hundred sixteen thousand, six hundred fourteen".