101221200211 has 4 divisors (see below), whose sum is σ = 101285797312. Its totient is φ = 101156603112.

The previous prime is 101221200163. The next prime is 101221200281. The reversal of 101221200211 is 112002122101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112002122101 = 5087 ⋅22017323.

It is a cyclic number.

It is not a de Polignac number, because 101221200211 - 2¹³ = 101221192019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101221200191 and 101221200200.

It is not an unprimeable number, because it can be changed into a prime (101221200281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32296200 + ... + 32299333.

It is an arithmetic number, because the mean of its divisors is an integer number (25321449328).

Almost surely, 2^101221200211 is an apocalyptic number.

101221200211 is a deficient number, since it is larger than the sum of its proper divisors (64597101).

101221200211 is an equidigital number, since it uses as much as digits as its factorization.

101221200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64597100.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101221200211 its reverse (112002122101), we get a palindrome (213223322312).

The spelling of 101221200211 in words is "one hundred one billion, two hundred twenty-one million, two hundred thousand, two hundred eleven".