12220022021020 has 48 divisors (see below), whose sum is σ = 28008413235936. Its totient is φ = 4441508864000.

The previous prime is 12220022021017. The next prime is 12220022021057. The reversal of 12220022021020 is 2012022002221.

It is a junction number, because it is equal to n+sod(n) for n = 12220022020985 and 12220022021003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12888061 + ... + 13803700.

It is an arithmetic number, because the mean of its divisors is an integer number (583508609082).

Almost surely, 2^{12220022021020} is an apocalyptic number.

12220022021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220022021020 is an abundant number, since it is smaller than the sum of its proper divisors (15788391214916).

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

12220022021020 is a wasteful number, since it uses less digits than its factorization.

12220022021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26693862 (or 26693860 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12220022021020 its reverse (2012022002221), we get a palindrome (14232044023241).

The spelling of 12220022021020 in words is "twelve trillion, two hundred twenty billion, twenty-two million, twenty-one thousand, twenty".