221000122002 has 32 divisors (see below), whose sum is σ = 482483490624. Its totient is φ = 66927872000.

The previous prime is 221000121989. The next prime is 221000122061. The reversal of 221000122002 is 200221000122.

221000122002 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 940083 + ... + 1151414.

It is an arithmetic number, because the mean of its divisors is an integer number (15077609082).

Almost surely, 2^221000122002 is an apocalyptic number.

221000122002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221000122002 is an abundant number, since it is smaller than the sum of its proper divisors (261483368622).

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

221000122002 is a wasteful number, since it uses less digits than its factorization.

221000122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093114.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 221000122002 its reverse (200221000122), we get a palindrome (421221122124).

The spelling of 221000122002 in words is "two hundred twenty-one billion, one hundred twenty-two thousand, two".