2100202112111 has 4 divisors (see below), whose sum is σ = 2210739065400. Its totient is φ = 1989665158824.

The previous prime is 2100202112083. The next prime is 2100202112137. The reversal of 2100202112111 is 1112112020012.

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 2100202112111 - 2³⁴ = 2083022242927 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 (2100202162111) 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, 55268476616 + ... + 55268476653.

It is an arithmetic number, because the mean of its divisors is an integer number (552684766350).

Almost surely, 2^{2100202112111} is an apocalyptic number.

2100202112111 is a deficient number, since it is larger than the sum of its proper divisors (110536953289).

2100202112111 is a wasteful number, since it uses less digits than its factorization.

2100202112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110536953288.

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

Adding to 2100202112111 its reverse (1112112020012), we get a palindrome (3212314132123).

The spelling of 2100202112111 in words is "two trillion, one hundred billion, two hundred two million, one hundred twelve thousand, one hundred eleven".