221202000222 has 64 divisors (see below), whose sum is σ = 563522158080. Its totient is φ = 56352208896.

The previous prime is 221202000193. The next prime is 221202000223. The reversal of 221202000222 is 222000202122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221202000223) 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, 8139243 + ... + 8166374.

It is an arithmetic number, because the mean of its divisors is an integer number (8805033720).

Almost surely, 2^221202000222 is an apocalyptic number.

221202000222 is an abundant number, since it is smaller than the sum of its proper divisors (342320157858).

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

221202000222 is a wasteful number, since it uses less digits than its factorization.

221202000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16305665.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 221202000222 its reverse (222000202122), we get a palindrome (443202202344).

The spelling of 221202000222 in words is "two hundred twenty-one billion, two hundred two million, two hundred twenty-two", and thus it is an aban number.