221222001010 has 64 divisors (see below), whose sum is σ = 422299837440. Its totient is φ = 83264924160.

The previous prime is 221222000983. The next prime is 221222001017. The reversal of 221222001010 is 10100222122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221222001017) 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, 6514375 + ... + 6548245.

It is an arithmetic number, because the mean of its divisors is an integer number (6598434960).

Almost surely, 2^221222001010 is an apocalyptic number.

221222001010 is a deficient number, since it is larger than the sum of its proper divisors (201077836430).

221222001010 is a wasteful number, since it uses less digits than its factorization.

221222001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34363.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221222001010 its reverse (10100222122), we get a palindrome (231322223132).

The spelling of 221222001010 in words is "two hundred twenty-one billion, two hundred twenty-two million, one thousand, ten".