22012030311 has 4 divisors (see below), whose sum is σ = 29349373752. Its totient is φ = 14674686872.

The previous prime is 22012030307. The next prime is 22012030319. The reversal of 22012030311 is 11303021022.

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 22012030311 - 2² = 22012030307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012030319) 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, 3668671716 + ... + 3668671721.

It is an arithmetic number, because the mean of its divisors is an integer number (7337343438).

Almost surely, 2^22012030311 is an apocalyptic number.

22012030311 is a deficient number, since it is larger than the sum of its proper divisors (7337343441).

22012030311 is an equidigital number, since it uses as much as digits as its factorization.

22012030311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7337343440.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22012030311 its reverse (11303021022), we get a palindrome (33315051333).

The spelling of 22012030311 in words is "twenty-two billion, twelve million, thirty thousand, three hundred eleven".