2122122002020 has 72 divisors (see below), whose sum is σ = 4584311707752. Its totient is φ = 825151856640.

The previous prime is 2122122002009. The next prime is 2122122002059. The reversal of 2122122002020 is 202002212212.

It can be written as a sum of positive squares in 12 ways, for example, as 2121817569316 + 304432704 = 1456646^2 + 17448^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2122122001985 and 2122122002003.

It is an unprimeable number.

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, 9198804 + ... + 9426676.

It is an arithmetic number, because the mean of its divisors is an integer number (63670995941).

Almost surely, 2^{2122122002020} is an apocalyptic number.

2122122002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2122122002020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2292155853876).

2122122002020 is an abundant number, since it is smaller than the sum of its proper divisors (2462189705732).

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

2122122002020 is a wasteful number, since it uses less digits than its factorization.

2122122002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228241 (or 228198 counting only the distinct ones).

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

Adding to 2122122002020 its reverse (202002212212), we get a palindrome (2324124214232).

The spelling of 2122122002020 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-two million, two thousand, twenty".