12220011020 has 72 divisors (see below), whose sum is σ = 29868654816. Its totient is φ = 4187344896.

The previous prime is 12220011019. The next prime is 12220011107. The reversal of 12220011020 is 2011002221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12220010992 and 12220011010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3386057 + ... + 3389663.

It is an arithmetic number, because the mean of its divisors is an integer number (414842428).

Almost surely, 2^12220011020 is an apocalyptic number.

12220011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220011020 is an abundant number, since it is smaller than the sum of its proper divisors (17648643796).

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

12220011020 is a wasteful number, since it uses less digits than its factorization.

12220011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7087 (or 7078 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12220011020 its reverse (2011002221), we get a palindrome (14231013241).

The spelling of 12220011020 in words is "twelve billion, two hundred twenty million, eleven thousand, twenty".