221102000010 has 96 divisors (see below), whose sum is σ = 595052070912. Its totient is φ = 56915187840.

The previous prime is 221101999999. The next prime is 221102000029. The reversal of 221102000010 is 10000201122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221101999956 and 221102000001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161505 + ... + 684315.

It is an arithmetic number, because the mean of its divisors is an integer number (6198459072).

Almost surely, 2^221102000010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221102000010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297526035456).

221102000010 is an abundant number, since it is smaller than the sum of its proper divisors (373950070902).

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

221102000010 is a wasteful number, since it uses less digits than its factorization.

221102000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522988 (or 522985 counting only the distinct ones).

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

Adding to 221102000010 its reverse (10000201122), we get a palindrome (231102201132).

The spelling of 221102000010 in words is "two hundred twenty-one billion, one hundred two million, ten", and thus it is an aban number.