211102012201 has 4 divisors (see below), whose sum is σ = 211103926272. Its totient is φ = 211100098132.

The previous prime is 211102012153. The next prime is 211102012207. The reversal of 211102012201 is 102210201112.

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.

It is a cyclic number.

It is not a de Polignac number, because 211102012201 - 2⁹ = 211102011689 is a prime.

It is a super-2 number, since 2×211102012201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211102012207) 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, 780781 + ... + 1015786.

It is an arithmetic number, because the mean of its divisors is an integer number (52775981568).

Almost surely, 2^211102012201 is an apocalyptic number.

It is an amenable number.

211102012201 is a deficient number, since it is larger than the sum of its proper divisors (1914071).

211102012201 is a wasteful number, since it uses less digits than its factorization.

211102012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914070.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211102012201 its reverse (102210201112), we get a palindrome (313312213313).

The spelling of 211102012201 in words is "two hundred eleven billion, one hundred two million, twelve thousand, two hundred one".