221167222216622 has 24 divisors (see below), whose sum is σ = 370094305761768. Its totient is φ = 99030099492720.

The previous prime is 221167222216621. The next prime is 221167222216639. The reversal of 221167222216622 is 226612222761122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221167222216621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6820238573 + ... + 6820271000.

It is an arithmetic number, because the mean of its divisors is an integer number (15420596073407).

Almost surely, 2^{221167222216622} is an apocalyptic number.

221167222216622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221167222216622 is a deficient number, since it is larger than the sum of its proper divisors (148927083545146).

221167222216622 is a wasteful number, since it uses less digits than its factorization.

221167222216622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13640509664 (or 13640509653 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

Adding to 221167222216622 its reverse (226612222761122), we get a palindrome (447779444977744).

The spelling of 221167222216622 in words is "two hundred twenty-one trillion, one hundred sixty-seven billion, two hundred twenty-two million, two hundred sixteen thousand, six hundred twenty-two".