101220220101211 has 4 divisors (see below), whose sum is σ = 101232225829024. Its totient is φ = 101208214373400.

The previous prime is 101220220101199. The next prime is 101220220101233. The reversal of 101220220101211 is 112101022022101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101220220101211 - 2¹⁷ = 101220219970139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220220105211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6002851260 + ... + 6002868121.

It is an arithmetic number, because the mean of its divisors is an integer number (25308056457256).

Almost surely, 2^{101220220101211} is an apocalyptic number.

101220220101211 is a deficient number, since it is larger than the sum of its proper divisors (12005727813).

101220220101211 is an equidigital number, since it uses as much as digits as its factorization.

101220220101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12005727812.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101220220101211 its reverse (112101022022101), we get a palindrome (213321242123312).

The spelling of 101220220101211 in words is "one hundred one trillion, two hundred twenty billion, two hundred twenty million, one hundred one thousand, two hundred eleven".