2213311997 has 8 divisors (see below), whose sum is σ = 2385653760. Its totient is φ = 2041268400.

The previous prime is 2213311993. The next prime is 2213312009. The reversal of 2213311997 is 7991133122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2213311997 - 2² = 2213311993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2213311997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213311993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58997 + ... + 88922.

It is an arithmetic number, because the mean of its divisors is an integer number (298206720).

Almost surely, 2^2213311997 is an apocalyptic number.

It is an amenable number.

2213311997 is a deficient number, since it is larger than the sum of its proper divisors (172341763).

2213311997 is a wasteful number, since it uses less digits than its factorization.

2213311997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149083.

The product of its digits is 20412, while the sum is 38.

The square root of 2213311997 is about 47045.8499444956. The cubic root of 2213311997 is about 1303.2094264911.

The spelling of 2213311997 in words is "two billion, two hundred thirteen million, three hundred eleven thousand, nine hundred ninety-seven".