2216933389969 has 9 divisors (see below), whose sum is σ = 2244090334153. Its totient is φ = 2190101256292.

The previous prime is 2216933389967. The next prime is 2216933389987. The reversal of 2216933389969 is 9699833396122.

It is a happy number.

The square root of 2216933389969 is 1488937.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2216933389969 - 2¹ = 2216933389967 is a prime.

It is a super-2 number, since 2×2216933389969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2216933389898 and 2216933389907.

It is not an unprimeable number, because it can be changed into a prime (2216933389961) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 123572802 + ... + 123590740.

Almost surely, 2^{2216933389969} is an apocalyptic number.

2216933389969 is the 1488937-th square number.

2216933389969 is the 744469-th centered octagonal number.

It is an amenable number.

2216933389969 is a deficient number, since it is larger than the sum of its proper divisors (27156944184).

2216933389969 is an frugal number, since it uses more digits than its factorization.

2216933389969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36044 (or 18022 counting only the distinct ones).

The product of its digits is 204073344, while the sum is 70.

The spelling of 2216933389969 in words is "two trillion, two hundred sixteen billion, nine hundred thirty-three million, three hundred eighty-nine thousand, nine hundred sixty-nine".