221002022002222 has 16 divisors (see below), whose sum is σ = 364122324581760. Its totient is φ = 100133639259192.

The previous prime is 221002022002211. The next prime is 221002022002259. The reversal of 221002022002222 is 222200220200122.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 221002022002222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126431361828 + ... + 126431363575.

It is an arithmetic number, because the mean of its divisors is an integer number (22757645286360).

Almost surely, 2^{221002022002222} is an apocalyptic number.

221002022002222 is a deficient number, since it is larger than the sum of its proper divisors (143120302579538).

221002022002222 is a wasteful number, since it uses less digits than its factorization.

221002022002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252862725447.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 221002022002222 its reverse (222200220200122), we get a palindrome (443202242202344).

The spelling of 221002022002222 in words is "two hundred twenty-one trillion, two billion, twenty-two million, two thousand, two hundred twenty-two".