20122001010020 has 96 divisors (see below), whose sum is σ = 52052051901696. Its totient is φ = 6362842636800.

The previous prime is 20122001009989. The next prime is 20122001010031. The reversal of 20122001010020 is 2001010022102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20122001009983 and 20122001010010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2589551 + ... + 6851990.

It is an arithmetic number, because the mean of its divisors is an integer number (542208873976).

Almost surely, 2^{20122001010020} is an apocalyptic number.

20122001010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122001010020 is an abundant number, since it is smaller than the sum of its proper divisors (31930050891676).

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

20122001010020 is a wasteful number, since it uses less digits than its factorization.

20122001010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442741 (or 9442739 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20122001010020 its reverse (2001010022102), we get a palindrome (22123011032122).

The spelling of 20122001010020 in words is "twenty trillion, one hundred twenty-two billion, one million, ten thousand, twenty".