211220100201 has 64 divisors (see below), whose sum is σ = 331654901760. Its totient is φ = 118185408000.

The previous prime is 211220100167. The next prime is 211220100211. The reversal of 211220100201 is 102001022112.

It is not a de Polignac number, because 211220100201 - 2⁶ = 211220100137 is a prime.

It is a super-2 number, since 2×211220100201² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211220100211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26037136 + ... + 26045246.

It is an arithmetic number, because the mean of its divisors is an integer number (5182107840).

Almost surely, 2^211220100201 is an apocalyptic number.

It is an amenable number.

211220100201 is a deficient number, since it is larger than the sum of its proper divisors (120434801559).

211220100201 is a wasteful number, since it uses less digits than its factorization.

211220100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9198.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211220100201 its reverse (102001022112), we get a palindrome (313221122313).

The spelling of 211220100201 in words is "two hundred eleven billion, two hundred twenty million, one hundred thousand, two hundred one".