221000222010 has 64 divisors (see below), whose sum is σ = 537399080064. Its totient is φ = 58159584000.

The previous prime is 221000221943. The next prime is 221000222017. The reversal of 221000222010 is 10222000122.

It is not an unprimeable number, because it can be changed into a prime (221000222017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 811420 + ... + 1049000.

It is an arithmetic number, because the mean of its divisors is an integer number (8396860626).

Almost surely, 2^221000222010 is an apocalyptic number.

221000222010 is an abundant number, since it is smaller than the sum of its proper divisors (316398858054).

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

221000222010 is a wasteful number, since it uses less digits than its factorization.

221000222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237999.

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

Adding to 221000222010 its reverse (10222000122), we get a palindrome (231222222132).

The spelling of 221000222010 in words is "two hundred twenty-one billion, two hundred twenty-two thousand, ten".