211020220201 has 32 divisors (see below), whose sum is σ = 256354007040. Its totient is φ = 169673543424.

The previous prime is 211020220189. The next prime is 211020220231. The reversal of 211020220201 is 102022020112.

It is a happy number.

It is not a de Polignac number, because 211020220201 - 2¹⁷ = 211020089129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211020220231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16871316 + ... + 16883818.

It is an arithmetic number, because the mean of its divisors is an integer number (8011062720).

Almost surely, 2^211020220201 is an apocalyptic number.

It is an amenable number.

211020220201 is a deficient number, since it is larger than the sum of its proper divisors (45333786839).

211020220201 is a wasteful number, since it uses less digits than its factorization.

211020220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13765.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 211020220201 its reverse (102022020112), we get a palindrome (313042240313).

The spelling of 211020220201 in words is "two hundred eleven billion, twenty million, two hundred twenty thousand, two hundred one".