20002213 has 16 divisors (see below), whose sum is σ = 25473024. Its totient is φ = 15251760.

The previous prime is 20002201. The next prime is 20002261. The reversal of 20002213 is 31220002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20002213 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 20002213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002313) 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, 856 + ... + 6382.

It is an arithmetic number, because the mean of its divisors is an integer number (1592064).

Almost surely, 2^20002213 is an apocalyptic number.

It is an amenable number.

20002213 is a deficient number, since it is larger than the sum of its proper divisors (5470811).

20002213 is a wasteful number, since it uses less digits than its factorization.

20002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5592.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20002213 is about 4472.3833690774. The cubic root of 20002213 is about 271.4517729672.

Adding to 20002213 its reverse (31220002), we get a palindrome (51222215).

The spelling of 20002213 in words is "twenty million, two thousand, two hundred thirteen".