12101120220 has 96 divisors (see below), whose sum is σ = 39358480896. Its totient is φ = 2720620800.

The previous prime is 12101120191. The next prime is 12101120231. The reversal of 12101120220 is 2202110121.

It is a super-2 number, since 2×12101120220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12101120196 and 12101120205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210546 + ... + 261785.

It is an arithmetic number, because the mean of its divisors is an integer number (409984176).

Almost surely, 2^12101120220 is an apocalyptic number.

12101120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101120220 is an abundant number, since it is smaller than the sum of its proper divisors (27257360676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101120220 is a wasteful number, since it uses less digits than its factorization.

12101120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472411 (or 472409 counting only the distinct ones).

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

Adding to 12101120220 its reverse (2202110121), we get a palindrome (14303230341).

The spelling of 12101120220 in words is "twelve billion, one hundred one million, one hundred twenty thousand, two hundred twenty".