2122203121020 has 72 divisors (see below), whose sum is σ = 6444354702240. Its totient is φ = 565304987520.

The previous prime is 2122203121001. The next prime is 2122203121021. The reversal of 2122203121020 is 201213022212.

2122203121020 is a `hidden beast` number, since 212 + 220 + 3 + 1 + 210 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2122203120984 and 2122203121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122203121021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6249171 + ... + 6580010.

It is an arithmetic number, because the mean of its divisors is an integer number (89504926420).

Almost surely, 2^{2122203121020} is an apocalyptic number.

2122203121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122203121020 is an abundant number, since it is smaller than the sum of its proper divisors (4322151581220).

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

2122203121020 is a wasteful number, since it uses less digits than its factorization.

2122203121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12830115 (or 12830110 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2122203121020 its reverse (201213022212), we get a palindrome (2323416143232).

The spelling of 2122203121020 in words is "two trillion, one hundred twenty-two billion, two hundred three million, one hundred twenty-one thousand, twenty".