20201122020111 has 8 divisors (see below), whose sum is σ = 27046592138544. Its totient is φ = 13411533290880.

The previous prime is 20201122020089. The next prime is 20201122020119. The reversal of 20201122020111 is 11102022110202.

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

It is not a de Polignac number, because 20201122020111 - 2⁹ = 20201122019599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201122020119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13970346456 + ... + 13970347901.

It is an arithmetic number, because the mean of its divisors is an integer number (3380824017318).

Almost surely, 2^{20201122020111} is an apocalyptic number.

20201122020111 is a deficient number, since it is larger than the sum of its proper divisors (6845470118433).

20201122020111 is a wasteful number, since it uses less digits than its factorization.

20201122020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27940694601.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20201122020111 its reverse (11102022110202), we get a palindrome (31303144130313).

Subtracting from 20201122020111 its reverse (11102022110202), we obtain a palindrome (9099099909909).

The spelling of 20201122020111 in words is "twenty trillion, two hundred one billion, one hundred twenty-two million, twenty thousand, one hundred eleven".