10021221202020 has 48 divisors (see below), whose sum is σ = 32067907847808. Its totient is φ = 2290564846080.

The previous prime is 10021221201949. The next prime is 10021221202021. The reversal of 10021221202020 is 2020212212001.

10021221202020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (10021221202021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11930024821 + ... + 11930025660.

It is an arithmetic number, because the mean of its divisors is an integer number (668081413496).

Almost surely, 2^{10021221202020} is an apocalyptic number.

10021221202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021221202020 is an abundant number, since it is smaller than the sum of its proper divisors (22046686645788).

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

10021221202020 is a wasteful number, since it uses less digits than its factorization.

10021221202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23860050500 (or 23860050498 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10021221202020 its reverse (2020212212001), we get a palindrome (12041433414021).

The spelling of 10021221202020 in words is "ten trillion, twenty-one billion, two hundred twenty-one million, two hundred two thousand, twenty".