221222000010 has 64 divisors (see below), whose sum is σ = 581602944384. Its totient is φ = 53407027200.

The previous prime is 221221999987. The next prime is 221222000047. The reversal of 221222000010 is 10000222122.

It is a self number, because there is not a number n which added to its sum of digits gives 221222000010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1311279 + ... + 1470338.

It is an arithmetic number, because the mean of its divisors is an integer number (9087546006).

Almost surely, 2^221222000010 is an apocalyptic number.

221222000010 is an abundant number, since it is smaller than the sum of its proper divisors (360380944374).

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

221222000010 is a wasteful number, since it uses less digits than its factorization.

221222000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781879.

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

Adding to 221222000010 its reverse (10000222122), we get a palindrome (231222222132).

The spelling of 221222000010 in words is "two hundred twenty-one billion, two hundred twenty-two million, ten", and thus it is an aban number.