12100220022020 has 48 divisors (see below), whose sum is σ = 27504022292208. Its totient is φ = 4445094474240.

The previous prime is 12100220021957. The next prime is 12100220022083. The reversal of 12100220022020 is 2022002200121.

It is an interprime number because it is at equal distance from previous prime (12100220021957) and next prime (12100220022083).

It can be written as a sum of positive squares in 8 ways, for example, as 177604930624 + 11922615091396 = 421432^2 + 3452914^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12100220021986 and 12100220022004.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 118068851 + ... + 118171290.

It is an arithmetic number, because the mean of its divisors is an integer number (573000464421).

Almost surely, 2^{12100220022020} is an apocalyptic number.

12100220022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100220022020 is an abundant number, since it is smaller than the sum of its proper divisors (15403802270188).

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

12100220022020 is a wasteful number, since it uses less digits than its factorization.

12100220022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236240360 (or 236240358 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12100220022020 its reverse (2022002200121), we get a palindrome (14122222222141).

The spelling of 12100220022020 in words is "twelve trillion, one hundred billion, two hundred twenty million, twenty-two thousand, twenty".