20211211334 has 16 divisors (see below), whose sum is σ = 31066081200. Its totient is φ = 9856007040.

The previous prime is 20211211333. The next prime is 20211211351. The reversal of 20211211334 is 43311211202.

It is a super-2 number, since 2×20211211334² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211211333) 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, 233162 + ... + 307874.

It is an arithmetic number, because the mean of its divisors is an integer number (1941630075).

Almost surely, 2^20211211334 is an apocalyptic number.

20211211334 is a deficient number, since it is larger than the sum of its proper divisors (10854869866).

20211211334 is a wasteful number, since it uses less digits than its factorization.

20211211334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78055.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20211211334 its reverse (43311211202), we get a palindrome (63522422536).

The spelling of 20211211334 in words is "twenty billion, two hundred eleven million, two hundred eleven thousand, three hundred thirty-four".