20122420310020 has 72 divisors (see below), whose sum is σ = 49158755971416. Its totient is φ = 6898756548096.

The previous prime is 20122420310017. The next prime is 20122420310023. The reversal of 20122420310020 is 2001302422102.

It is an interprime number because it is at equal distance from previous prime (20122420310017) and next prime (20122420310023).

It can be written as a sum of positive squares in 4 ways, for example, as 7168856310784 + 12953563999236 = 2677472^2 + 3599106^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20122420310020.

It is not an unprimeable number, because it can be changed into a prime (20122420310023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18661042 + ... + 19709878.

It is an arithmetic number, because the mean of its divisors is an integer number (682760499603).

Almost surely, 2^{20122420310020} is an apocalyptic number.

20122420310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122420310020 is an abundant number, since it is smaller than the sum of its proper divisors (29036335661396).

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

20122420310020 is a wasteful number, since it uses less digits than its factorization.

20122420310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068437 (or 1068428 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20122420310020 its reverse (2001302422102), we get a palindrome (22123722732122).

The spelling of 20122420310020 in words is "twenty trillion, one hundred twenty-two billion, four hundred twenty million, three hundred ten thousand, twenty".