2216121364 has 24 divisors (see below), whose sum is σ = 4024117160. Its totient is φ = 1066991616.

The previous prime is 2216121353. The next prime is 2216121389. The reversal of 2216121364 is 4631216122.

It can be written as a sum of positive squares in 4 ways, for example, as 488056464 + 1728064900 = 22092^2 + 41570^2 .

It is a super-2 number, since 2×2216121364² = 9822387799954440992, which contains 22 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62829 + ... + 91540.

Almost surely, 2^2216121364 is an apocalyptic number.

It is an amenable number.

2216121364 is a deficient number, since it is larger than the sum of its proper divisors (1807995796).

2216121364 is a wasteful number, since it uses less digits than its factorization.

2216121364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154507 (or 154505 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 2216121364 is about 47075.6982316779. The cubic root of 2216121364 is about 1303.7605832487.

Adding to 2216121364 its reverse (4631216122), we get a palindrome (6847337486).

The spelling of 2216121364 in words is "two billion, two hundred sixteen million, one hundred twenty-one thousand, three hundred sixty-four".