221222010700 has 72 divisors (see below), whose sum is σ = 481833848160. Its totient is φ = 88160793600.

The previous prime is 221222010643. The next prime is 221222010703. The reversal of 221222010700 is 7010222122.

It is not an unprimeable number, because it can be changed into a prime (221222010703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52160580 + ... + 52164820.

It is an arithmetic number, because the mean of its divisors is an integer number (6692136780).

Almost surely, 2^221222010700 is an apocalyptic number.

221222010700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221222010700 is an abundant number, since it is smaller than the sum of its proper divisors (260611837460).

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

221222010700 is a wasteful number, since it uses less digits than its factorization.

221222010700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067 (or 6060 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

Adding to 221222010700 its reverse (7010222122), we get a palindrome (228232232822).

The spelling of 221222010700 in words is "two hundred twenty-one billion, two hundred twenty-two million, ten thousand, seven hundred".