101220110211 has 64 divisors (see below), whose sum is σ = 155026980864. Its totient is φ = 58147478400.

The previous prime is 101220110179. The next prime is 101220110219. The reversal of 101220110211 is 112011022101.

It is not a de Polignac number, because 101220110211 - 2⁵ = 101220110179 is a prime.

It is a super-2 number, since 2×101220110211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101220110219) 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 63 ways as a sum of consecutive naturals, for example, 42474726 + ... + 42477108.

It is an arithmetic number, because the mean of its divisors is an integer number (2422296576).

Almost surely, 2^101220110211 is an apocalyptic number.

101220110211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101220110211 is a deficient number, since it is larger than the sum of its proper divisors (53806870653).

101220110211 is a wasteful number, since it uses less digits than its factorization.

101220110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101220110211 its reverse (112011022101), we get a palindrome (213231132312).

It can be divided in two parts, 10 and 1220110211, that added together give a palindrome (1220110221).

The spelling of 101220110211 in words is "one hundred one billion, two hundred twenty million, one hundred ten thousand, two hundred eleven".