20010002122020 has 96 divisors (see below), whose sum is σ = 57939197654016. Its totient is φ = 5154600384000.

The previous prime is 20010002122009. The next prime is 20010002122027. The reversal of 20010002122020 is 2022120001002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20010002121987 and 20010002122005.

It is not an unprimeable number, because it can be changed into a prime (20010002122027) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8621131 + ... + 10693170.

It is an arithmetic number, because the mean of its divisors is an integer number (603533308896).

Almost surely, 2^{20010002122020} is an apocalyptic number.

20010002122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010002122020 is an abundant number, since it is smaller than the sum of its proper divisors (37929195531996).

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

20010002122020 is a wasteful number, since it uses less digits than its factorization.

20010002122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19314901 (or 19314899 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20010002122020 its reverse (2022120001002), we get a palindrome (22032122123022).

The spelling of 20010002122020 in words is "twenty trillion, ten billion, two million, one hundred twenty-two thousand, twenty".