221210222000 has 80 divisors (see below), whose sum is σ = 566350304832. Its totient is φ = 83279129600.

The previous prime is 221210221993. The next prime is 221210222011. The reversal of 221210222000 is 222012122.

221210222000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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, 3219092 + ... + 3287091.

Almost surely, 2^221210222000 is an apocalyptic number.

221210222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221210222000 is an abundant number, since it is smaller than the sum of its proper divisors (345140082832).

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

221210222000 is a wasteful number, since it uses less digits than its factorization.

221210222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506223 (or 6506207 counting only the distinct ones).

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

Adding to 221210222000 its reverse (222012122), we get a palindrome (221432234122).

The spelling of 221210222000 in words is "two hundred twenty-one billion, two hundred ten million, two hundred twenty-two thousand".