211020311201 has 16 divisors (see below), whose sum is σ = 241630341120. Its totient is φ = 180526637520.

The previous prime is 211020311179. The next prime is 211020311231. The reversal of 211020311201 is 102113020112.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211020311201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211020311231) 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, 9854216 + ... + 9875606.

It is an arithmetic number, because the mean of its divisors is an integer number (15101896320).

Almost surely, 2^211020311201 is an apocalyptic number.

It is an amenable number.

211020311201 is a deficient number, since it is larger than the sum of its proper divisors (30610029919).

211020311201 is a wasteful number, since it uses less digits than its factorization.

211020311201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24044.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 211020311201 its reverse (102113020112), we get a palindrome (313133331313).

The spelling of 211020311201 in words is "two hundred eleven billion, twenty million, three hundred eleven thousand, two hundred one".