221022222002 has 8 divisors (see below), whose sum is σ = 332422163436. Its totient is φ = 110214834192.

The previous prime is 221022221989. The next prime is 221022222061. The reversal of 221022222002 is 200222220122.

221022222002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 220797551881 + 224670121 = 469891^2 + 14989^2 .

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

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, 148137473 + ... + 148138964.

Almost surely, 2^221022222002 is an apocalyptic number.

221022222002 is a deficient number, since it is larger than the sum of its proper divisors (111399941434).

221022222002 is a wasteful number, since it uses less digits than its factorization.

221022222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296276812.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 221022222002 its reverse (200222220122), we get a palindrome (421244442124).

The spelling of 221022222002 in words is "two hundred twenty-one billion, twenty-two million, two hundred twenty-two thousand, two".