101001220211 has 4 divisors (see below), whose sum is σ = 101772222024. Its totient is φ = 100230218400.

The previous prime is 101001220189. The next prime is 101001220217. The reversal of 101001220211 is 112022100101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112022100101 = 109 ⋅1027725689.

It is a cyclic number.

It is not a de Polignac number, because 101001220211 - 2²² = 100997025907 is a prime.

It is a super-2 number, since 2×101001220211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101001220192 and 101001220201.

It is not an unprimeable number, because it can be changed into a prime (101001220217) 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, 385500710 + ... + 385500971.

It is an arithmetic number, because the mean of its divisors is an integer number (25443055506).

Almost surely, 2^101001220211 is an apocalyptic number.

101001220211 is a deficient number, since it is larger than the sum of its proper divisors (771001813).

101001220211 is an equidigital number, since it uses as much as digits as its factorization.

101001220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771001812.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101001220211 its reverse (112022100101), we get a palindrome (213023320312).

The spelling of 101001220211 in words is "one hundred one billion, one million, two hundred twenty thousand, two hundred eleven".