10221201012020 has 24 divisors (see below), whose sum is σ = 21677042150568. Its totient is φ = 4048000400000.

The previous prime is 10221201012017. The next prime is 10221201012047. The reversal of 10221201012020 is 2021010212201.

10221201012020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6300531727396 + 3920669284624 = 2510086^2 + 1980068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10221201011986 and 10221201012004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2529998231 + ... + 2530002270.

It is an arithmetic number, because the mean of its divisors is an integer number (903210089607).

Almost surely, 2^{10221201012020} is an apocalyptic number.

10221201012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221201012020 is an abundant number, since it is smaller than the sum of its proper divisors (11455841138548).

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

10221201012020 is a wasteful number, since it uses less digits than its factorization.

10221201012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060000611 (or 5060000609 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10221201012020 its reverse (2021010212201), we get a palindrome (12242211224221).

The spelling of 10221201012020 in words is "ten trillion, two hundred twenty-one billion, two hundred one million, twelve thousand, twenty".