10221311420220 has 48 divisors (see below), whose sum is σ = 28633425172128. Its totient is φ = 2724373217280.

The previous prime is 10221311420171. The next prime is 10221311420231. The reversal of 10221311420220 is 2202411312201.

It is a happy number.

It is a congruent number.

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, 40806229 + ... + 41055948.

It is an arithmetic number, because the mean of its divisors is an integer number (596529691086).

Almost surely, 2^{10221311420220} is an apocalyptic number.

10221311420220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221311420220 is an abundant number, since it is smaller than the sum of its proper divisors (18412113751908).

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

10221311420220 is a wasteful number, since it uses less digits than its factorization.

10221311420220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81864270 (or 81864268 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 10221311420220 its reverse (2202411312201), we get a palindrome (12423722732421).

The spelling of 10221311420220 in words is "ten trillion, two hundred twenty-one billion, three hundred eleven million, four hundred twenty thousand, two hundred twenty".