20112213311 has 8 divisors (see below), whose sum is σ = 21078307680. Its totient is φ = 19153756512.

The previous prime is 20112213301. The next prime is 20112213347. The reversal of 20112213311 is 11331221102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112213311 is a prime.

It is a super-2 number, since 2×20112213311² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20112213311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112213301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1904000 + ... + 1914533.

It is an arithmetic number, because the mean of its divisors is an integer number (2634788460).

Almost surely, 2^20112213311 is an apocalyptic number.

20112213311 is a deficient number, since it is larger than the sum of its proper divisors (966094369).

20112213311 is a wasteful number, since it uses less digits than its factorization.

20112213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818785.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20112213311 its reverse (11331221102), we get a palindrome (31443434413).

The spelling of 20112213311 in words is "twenty billion, one hundred twelve million, two hundred thirteen thousand, three hundred eleven".