20012220200111 has 4 divisors (see below), whose sum is σ = 20310910053912. Its totient is φ = 19713530346312.

The previous prime is 20012220200059. The next prime is 20012220200227. The reversal of 20012220200111 is 11100202221002.

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 20012220200111 - 2²² = 20012216005807 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 (20012220200611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149344926800 + ... + 149344926933.

It is an arithmetic number, because the mean of its divisors is an integer number (5077727513478).

Almost surely, 2^{20012220200111} is an apocalyptic number.

20012220200111 is a deficient number, since it is larger than the sum of its proper divisors (298689853801).

20012220200111 is an equidigital number, since it uses as much as digits as its factorization.

20012220200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298689853800.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20012220200111 its reverse (11100202221002), we get a palindrome (31112422421113).

The spelling of 20012220200111 in words is "twenty trillion, twelve billion, two hundred twenty million, two hundred thousand, one hundred eleven".