221354235124202 has 8 divisors (see below), whose sum is σ = 332031890091936. Its totient is φ = 110676938426892.

The previous prime is 221354235124201. The next prime is 221354235124207. The reversal of 221354235124202 is 202421532453122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×221354235124202² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221354235124201) 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 3 ways as a sum of consecutive naturals, for example, 88017638 + ... + 90497585.

It is an arithmetic number, because the mean of its divisors is an integer number (41503986261492).

Almost surely, 2^{221354235124202} is an apocalyptic number.

221354235124202 is a deficient number, since it is larger than the sum of its proper divisors (110677654967734).

221354235124202 is a wasteful number, since it uses less digits than its factorization.

221354235124202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179135212.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 221354235124202 its reverse (202421532453122), we get a palindrome (423775767577324).

The spelling of 221354235124202 in words is "two hundred twenty-one trillion, three hundred fifty-four billion, two hundred thirty-five million, one hundred twenty-four thousand, two hundred two".