211200120101 has 4 divisors (see below), whose sum is σ = 211201072704. Its totient is φ = 211199167500.

The previous prime is 211200120097. The next prime is 211200120113. The reversal of 211200120101 is 101021002112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 211200120101 - 2² = 211200120097 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 (211200122101) 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, 50426 + ... + 651876.

It is an arithmetic number, because the mean of its divisors is an integer number (52800268176).

Almost surely, 2^211200120101 is an apocalyptic number.

It is an amenable number.

211200120101 is a deficient number, since it is larger than the sum of its proper divisors (952603).

211200120101 is an equidigital number, since it uses as much as digits as its factorization.

211200120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952602.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211200120101 its reverse (101021002112), we get a palindrome (312221122213).

The spelling of 211200120101 in words is "two hundred eleven billion, two hundred million, one hundred twenty thousand, one hundred one".