213220021003111 has 4 divisors (see below), whose sum is σ = 214496787596112. Its totient is φ = 211943254410112.

The previous prime is 213220021003081. The next prime is 213220021003139. The reversal of 213220021003111 is 111300120022312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213220021003111 - 2¹⁵ = 213220020970343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213220021003151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638383296250 + ... + 638383296583.

It is an arithmetic number, because the mean of its divisors is an integer number (53624196899028).

Almost surely, 2^{213220021003111} is an apocalyptic number.

213220021003111 is a deficient number, since it is larger than the sum of its proper divisors (1276766593001).

213220021003111 is a wasteful number, since it uses less digits than its factorization.

213220021003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276766593000.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213220021003111 its reverse (111300120022312), we get a palindrome (324520141025423).

The spelling of 213220021003111 in words is "two hundred thirteen trillion, two hundred twenty billion, twenty-one million, three thousand, one hundred eleven".