1219966316 has 48 divisors (see below), whose sum is σ = 2275560000. Its totient is φ = 571253760.

The previous prime is 1219966313. The next prime is 1219966333. The reversal of 1219966316 is 6136699121.

It is a super-2 number, since 2×1219966316² = 2976635624349223712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1219966313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945800 + ... + 947088.

It is an arithmetic number, because the mean of its divisors is an integer number (47407500).

Almost surely, 2^1219966316 is an apocalyptic number.

It is an amenable number.

1219966316 is a deficient number, since it is larger than the sum of its proper divisors (1055593684).

1219966316 is a wasteful number, since it uses less digits than its factorization.

1219966316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562 (or 1560 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 1219966316 is about 34928.0162047603. The cubic root of 1219966316 is about 1068.5198960815.

The spelling of 1219966316 in words is "one billion, two hundred nineteen million, nine hundred sixty-six thousand, three hundred sixteen".