221202021020000 has 240 divisors, whose sum is σ = 551607502146624. Its totient is φ = 87281280000000.

The previous prime is 221202021019999. The next prime is 221202021020039. The reversal of 221202021020000 is 20120202122.

221202021020000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 547217960 + ... + 547622040.

Almost surely, 2^{221202021020000} is an apocalyptic number.

221202021020000 is a gapful number since it is divisible by the number (20) 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 221202021020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275803751073312).

221202021020000 is an abundant number, since it is smaller than the sum of its proper divisors (330405481126624).

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

221202021020000 is a wasteful number, since it uses less digits than its factorization.

221202021020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404483 (or 404460 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 221202021020000 its reverse (20120202122), we get a palindrome (221222141222122).

The spelling of 221202021020000 in words is "two hundred twenty-one trillion, two hundred two billion, twenty-one million, twenty thousand".