221201022242 has 8 divisors (see below), whose sum is σ = 331813430976. Its totient is φ = 110596545252.

The previous prime is 221201022241. The next prime is 221201022269. The reversal of 221201022242 is 242220102122.

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

It is not an unprimeable number, because it can be changed into a prime (221201022241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1912718 + ... + 2025065.

It is an arithmetic number, because the mean of its divisors is an integer number (41476678872).

Almost surely, 2^221201022242 is an apocalyptic number.

221201022242 is a deficient number, since it is larger than the sum of its proper divisors (110612408734).

221201022242 is a wasteful number, since it uses less digits than its factorization.

221201022242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3965872.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 221201022242 its reverse (242220102122), we get a palindrome (463421124364).

The spelling of 221201022242 in words is "two hundred twenty-one billion, two hundred one million, twenty-two thousand, two hundred forty-two".