221000403411442 has 8 divisors (see below), whose sum is σ = 332403876521856. Its totient is φ = 110199111237492.

The previous prime is 221000403411421. The next prime is 221000403411457. The reversal of 221000403411442 is 244114304000122.

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

It is a self number, because there is not a number n which added to its sum of digits gives 221000403411442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150545233198 + ... + 150545234665.

It is an arithmetic number, because the mean of its divisors is an integer number (41550484565232).

Almost surely, 2^{221000403411442} is an apocalyptic number.

221000403411442 is a deficient number, since it is larger than the sum of its proper divisors (111403473110414).

221000403411442 is a wasteful number, since it uses less digits than its factorization.

221000403411442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301090468232.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 221000403411442 its reverse (244114304000122), we get a palindrome (465114707411564).

The spelling of 221000403411442 in words is "two hundred twenty-one trillion, four hundred three million, four hundred eleven thousand, four hundred forty-two".