20211222313311 has 32 divisors (see below), whose sum is σ = 28009841368320. Its totient is φ = 12947864160000.

The previous prime is 20211222313301. The next prime is 20211222313339. The reversal of 20211222313311 is 11331322211202.

It is not a de Polignac number, because 20211222313311 - 2³⁵ = 20176862574943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211222313301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28496356 + ... + 29196998.

It is an arithmetic number, because the mean of its divisors is an integer number (875307542760).

Almost surely, 2^{20211222313311} is an apocalyptic number.

20211222313311 is a deficient number, since it is larger than the sum of its proper divisors (7798619055009).

20211222313311 is a wasteful number, since it uses less digits than its factorization.

20211222313311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702247.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 20211222313311 its reverse (11331322211202), we get a palindrome (31542544524513).

The spelling of 20211222313311 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, three hundred thirteen thousand, three hundred eleven".