221010102000 has 480 divisors, whose sum is σ = 820185986880. Its totient is φ = 55360972800.

The previous prime is 221010101993. The next prime is 221010102031. The reversal of 221010102000 is 201010122.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19308279 + ... + 19319721.

It is an arithmetic number, because the mean of its divisors is an integer number (1708720806).

Almost surely, 2^221010102000 is an apocalyptic number.

221010102000 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 221010102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410092993440).

221010102000 is an abundant number, since it is smaller than the sum of its proper divisors (599175884880).

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

221010102000 is a wasteful number, since it uses less digits than its factorization.

221010102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538 (or 11519 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 221010102000 its reverse (201010122), we get a palindrome (221211112122).

The spelling of 221010102000 in words is "two hundred twenty-one billion, ten million, one hundred two thousand".