20221120203111 has 16 divisors (see below), whose sum is σ = 30037529380320. Its totient is φ = 13444605383040.

The previous prime is 20221120203107. The next prime is 20221120203121. The reversal of 20221120203111 is 11130202112202.

It is not a de Polignac number, because 20221120203111 - 2² = 20221120203107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221120203121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1003918050 + ... + 1003938191.

It is an arithmetic number, because the mean of its divisors is an integer number (1877345586270).

Almost surely, 2^{20221120203111} is an apocalyptic number.

20221120203111 is a deficient number, since it is larger than the sum of its proper divisors (9816409177209).

20221120203111 is a wasteful number, since it uses less digits than its factorization.

20221120203111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007856623 (or 2007856617 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20221120203111 its reverse (11130202112202), we get a palindrome (31351322315313).

The spelling of 20221120203111 in words is "twenty trillion, two hundred twenty-one billion, one hundred twenty million, two hundred three thousand, one hundred eleven".