221453354122 has 64 divisors (see below), whose sum is σ = 449213184000. Its totient is φ = 79070489280.

The previous prime is 221453354071. The next prime is 221453354141.

221453354122 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 119622 + ... + 676177.

It is an arithmetic number, because the mean of its divisors is an integer number (7018956000).

Almost surely, 2^221453354122 is an apocalyptic number.

221453354122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221453354122 is an abundant number, since it is smaller than the sum of its proper divisors (227759829878).

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

221453354122 is a wasteful number, since it uses less digits than its factorization.

221453354122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795971.

The product of its digits is 57600, while the sum is 34.

It can be divided in two parts, 221453 and 354122, that added together give a palindrome (575575).

The spelling of 221453354122 in words is "two hundred twenty-one billion, four hundred fifty-three million, three hundred fifty-four thousand, one hundred twenty-two".