211220200101 has 64 divisors (see below), whose sum is σ = 305437409280. Its totient is φ = 129358494720.

The previous prime is 211220200013. The next prime is 211220200123. The reversal of 211220200101 is 101002022112.

It is not a de Polignac number, because 211220200101 - 2¹¹ = 211220198053 is a prime.

It is a super-2 number, since 2×211220200101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220200151) 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, 143588796 + ... + 143590266.

It is an arithmetic number, because the mean of its divisors is an integer number (4772459520).

Almost surely, 2^211220200101 is an apocalyptic number.

It is an amenable number.

211220200101 is a deficient number, since it is larger than the sum of its proper divisors (94217209179).

211220200101 is a wasteful number, since it uses less digits than its factorization.

211220200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954.

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

Adding to 211220200101 its reverse (101002022112), we get a palindrome (312222222213).

The spelling of 211220200101 in words is "two hundred eleven billion, two hundred twenty million, two hundred thousand, one hundred one".