200221220122 has 32 divisors (see below), whose sum is σ = 376952745600. Its totient is φ = 77484713280.

The previous prime is 200221220119. The next prime is 200221220137. The reversal of 200221220122 is 221022122002.

It is a junction number, because it is equal to n+sod(n) for n = 200221220096 and 200221220105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4339933 + ... + 4385824.

It is an arithmetic number, because the mean of its divisors is an integer number (11779773300).

Almost surely, 2^200221220122 is an apocalyptic number.

200221220122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

200221220122 is a deficient number, since it is larger than the sum of its proper divisors (176731525478).

200221220122 is a wasteful number, since it uses less digits than its factorization.

200221220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8725926.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 200221220122 its reverse (221022122002), we get a palindrome (421243342124).

The spelling of 200221220122 in words is "two hundred billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twenty-two".