200122002 has 20 divisors (see below), whose sum is σ = 448421886. Its totient is φ = 66707280.

The previous prime is 200121991. The next prime is 200122031. The reversal of 200122002 is 200221002.

It can be written as a sum of positive squares in only one way, i.e., 199911321 + 210681 = 14139^2 + 459^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 617499 + ... + 617822.

Almost surely, 2^200122002 is an apocalyptic number.

200122002 is an abundant number, since it is smaller than the sum of its proper divisors (248299884).

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

200122002 is a wasteful number, since it uses less digits than its factorization.

200122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235335 (or 1235326 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 200122002 is about 14146.4483881998. The cubic root of 200122002 is about 584.9224354756.

Adding to 200122002 its reverse (200221002), we get a palindrome (400343004).

The spelling of 200122002 in words is "two hundred million, one hundred twenty-two thousand, two".