221002222220000 has 120 divisors (see below), whose sum is σ = 585521588221416. Its totient is φ = 81600820416000.

The previous prime is 221002222219993. The next prime is 221002222220071. The reversal of 221002222220000 is 22222200122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 424744274 + ... + 425264273.

Almost surely, 2^{221002222220000} is an apocalyptic number.

221002222220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002222220000 is an abundant number, since it is smaller than the sum of its proper divisors (364519366001416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221002222220000 is an equidigital number, since it uses as much as digits as its factorization.

221002222220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850008590 (or 850008567 counting only the distinct ones).

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

Adding to 221002222220000 its reverse (22222200122), we get a palindrome (221024444420122).

The spelling of 221002222220000 in words is "two hundred twenty-one trillion, two billion, two hundred twenty-two million, two hundred twenty thousand".