20212201010111 has 4 divisors (see below), whose sum is σ = 22049673829224. Its totient is φ = 18374728191000.

The previous prime is 20212201009993. The next prime is 20212201010119. The reversal of 20212201010111 is 11101010221202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20212201010111 - 2³⁴ = 20195021140927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212201010119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918736409540 + ... + 918736409561.

It is an arithmetic number, because the mean of its divisors is an integer number (5512418457306).

Almost surely, 2^{20212201010111} is an apocalyptic number.

20212201010111 is a deficient number, since it is larger than the sum of its proper divisors (1837472819113).

20212201010111 is a wasteful number, since it uses less digits than its factorization.

20212201010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837472819112.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20212201010111 its reverse (11101010221202), we get a palindrome (31313211231313).

The spelling of 20212201010111 in words is "twenty trillion, two hundred twelve billion, two hundred one million, ten thousand, one hundred eleven".