221222334020 has 48 divisors (see below), whose sum is σ = 466398912000. Its totient is φ = 88140476160.

The previous prime is 221222333989. The next prime is 221222334023. The reversal of 221222334020 is 20433222122.

It is not an unprimeable number, because it can be changed into a prime (221222334023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7459181 + ... + 7488779.

It is an arithmetic number, because the mean of its divisors is an integer number (9716644000).

Almost surely, 2^221222334020 is an apocalyptic number.

221222334020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221222334020 is an abundant number, since it is smaller than the sum of its proper divisors (245176577980).

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

221222334020 is a wasteful number, since it uses less digits than its factorization.

221222334020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31068 (or 31066 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 221222334020 its reverse (20433222122), we get a palindrome (241655556142).

The spelling of 221222334020 in words is "two hundred twenty-one billion, two hundred twenty-two million, three hundred thirty-four thousand, twenty".