20011022202111 has 8 divisors (see below), whose sum is σ = 26745041608320. Its totient is φ = 13308842131992.

The previous prime is 20011022202089. The next prime is 20011022202113. The reversal of 20011022202111 is 11120222011002.

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

It is not a de Polignac number, because 20011022202111 - 2³⁸ = 19736144295167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011022202113) 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, 7959832555 + ... + 7959835068.

It is an arithmetic number, because the mean of its divisors is an integer number (3343130201040).

Almost surely, 2^{20011022202111} is an apocalyptic number.

20011022202111 is a deficient number, since it is larger than the sum of its proper divisors (6734019406209).

20011022202111 is a wasteful number, since it uses less digits than its factorization.

20011022202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15919668045.

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

Adding to 20011022202111 its reverse (11120222011002), we get a palindrome (31131244213113).

The spelling of 20011022202111 in words is "twenty trillion, eleven billion, twenty-two million, two hundred two thousand, one hundred eleven".