20201100212111 has 16 divisors (see below), whose sum is σ = 25469304587328. Its totient is φ = 15593451782400.

The previous prime is 20201100212107. The next prime is 20201100212119. The reversal of 20201100212111 is 11121200110202.

It is a cyclic number.

It is not a de Polignac number, because 20201100212111 - 2² = 20201100212107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201100212119) 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, 2707192760 + ... + 2707200221.

It is an arithmetic number, because the mean of its divisors is an integer number (1591831536708).

Almost surely, 2^{20201100212111} is an apocalyptic number.

20201100212111 is a deficient number, since it is larger than the sum of its proper divisors (5268204375217).

20201100212111 is a wasteful number, since it uses less digits than its factorization.

20201100212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414393042.

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

Adding to 20201100212111 its reverse (11121200110202), we get a palindrome (31322300322313).

The spelling of 20201100212111 in words is "twenty trillion, two hundred one billion, one hundred million, two hundred twelve thousand, one hundred eleven".