221442144022 has 32 divisors (see below), whose sum is σ = 362886013440. Its totient is φ = 100509504480.

The previous prime is 221442144019. The next prime is 221442144103. The reversal of 221442144022 is 220441244122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75653523 + ... + 75656449.

It is an arithmetic number, because the mean of its divisors is an integer number (11340187920).

Almost surely, 2^221442144022 is an apocalyptic number.

221442144022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221442144022 is a deficient number, since it is larger than the sum of its proper divisors (141443869418).

221442144022 is a wasteful number, since it uses less digits than its factorization.

221442144022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6756.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 221442144022 its reverse (220441244122), we get a palindrome (441883388144).

The spelling of 221442144022 in words is "two hundred twenty-one billion, four hundred forty-two million, one hundred forty-four thousand, twenty-two".