201200111211101 has 4 divisors (see below), whose sum is σ = 204996339724572. Its totient is φ = 197403882697632.

The previous prime is 201200111211089. The next prime is 201200111211137. The reversal of 201200111211101 is 101112111002102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55415592547225 + 145784518663876 = 7444165^2 + 12074126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201200111211101 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 (201200111210101) 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, 1898114256656 + ... + 1898114256761.

It is an arithmetic number, because the mean of its divisors is an integer number (51249084931143).

Almost surely, 2^{201200111211101} is an apocalyptic number.

It is an amenable number.

201200111211101 is a deficient number, since it is larger than the sum of its proper divisors (3796228513471).

201200111211101 is an equidigital number, since it uses as much as digits as its factorization.

201200111211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796228513470.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201200111211101 its reverse (101112111002102), we get a palindrome (302312222213203).

The spelling of 201200111211101 in words is "two hundred one trillion, two hundred billion, one hundred eleven million, two hundred eleven thousand, one hundred one".