10020504221420 has 96 divisors (see below), whose sum is σ = 26242533757440. Its totient is φ = 3122436925440.

The previous prime is 10020504221389. The next prime is 10020504221449. The reversal of 10020504221420 is 2412240502001.

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, 4887932 + ... + 6628188.

It is an arithmetic number, because the mean of its divisors is an integer number (273359726640).

Almost surely, 2^{10020504221420} is an apocalyptic number.

10020504221420 is a gapful number since it is divisible by the number (10) 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 10020504221420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13121266878720).

10020504221420 is an abundant number, since it is smaller than the sum of its proper divisors (16222029536020).

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

10020504221420 is a wasteful number, since it uses less digits than its factorization.

10020504221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744023 (or 1744021 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 10020504221420 its reverse (2412240502001), we get a palindrome (12432744723421).

The spelling of 10020504221420 in words is "ten trillion, twenty billion, five hundred four million, two hundred twenty-one thousand, four hundred twenty".