10221202001020 has 24 divisors (see below), whose sum is σ = 21486629829168. Its totient is φ = 4084270204800.

The previous prime is 10221202000987. The next prime is 10221202001029. The reversal of 10221202001020 is 2010020212201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221202001029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263142321 + ... + 263181160.

It is an arithmetic number, because the mean of its divisors is an integer number (895276242882).

Almost surely, 2^{10221202001020} is an apocalyptic number.

10221202001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221202001020 is an abundant number, since it is smaller than the sum of its proper divisors (11265427828148).

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

10221202001020 is a wasteful number, since it uses less digits than its factorization.

10221202001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526324461 (or 526324459 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10221202001020 its reverse (2010020212201), we get a palindrome (12231222213221).

The spelling of 10221202001020 in words is "ten trillion, two hundred twenty-one billion, two hundred two million, one thousand, twenty".