10021020220420 has 48 divisors (see below), whose sum is σ = 22957474377600. Its totient is φ = 3643971153920.

The previous prime is 10021020220411. The next prime is 10021020220433. The reversal of 10021020220420 is 2402202012001.

It is a junction number, because it is equal to n+sod(n) for n = 10021020220394 and 10021020220403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33106521 + ... + 33407839.

It is an arithmetic number, because the mean of its divisors is an integer number (478280716200).

Almost surely, 2^{10021020220420} is an apocalyptic number.

10021020220420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021020220420 is an abundant number, since it is smaller than the sum of its proper divisors (12936454157180).

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

10021020220420 is a wasteful number, since it uses less digits than its factorization.

10021020220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452508 (or 452506 counting only the distinct ones).

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

Adding to 10021020220420 its reverse (2402202012001), we get a palindrome (12423222232421).

The spelling of 10021020220420 in words is "ten trillion, twenty-one billion, twenty million, two hundred twenty thousand, four hundred twenty".