221000202210 has 128 divisors (see below), whose sum is σ = 562018176000. Its totient is φ = 55462724352.

The previous prime is 221000202173. The next prime is 221000202221. The reversal of 221000202210 is 12202000122.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58110169 + ... + 58113971.

It is an arithmetic number, because the mean of its divisors is an integer number (4390767000).

Almost surely, 2^221000202210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221000202210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281009088000).

221000202210 is an abundant number, since it is smaller than the sum of its proper divisors (341017973790).

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

221000202210 is a wasteful number, since it uses less digits than its factorization.

221000202210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 221000202210 its reverse (12202000122), we get a palindrome (233202202332).

The spelling of 221000202210 in words is "two hundred twenty-one billion, two hundred two thousand, two hundred ten".