200020122 has 24 divisors (see below), whose sum is σ = 447358080. Its totient is φ = 64522440.

The previous prime is 200020103. The next prime is 200020127. The reversal of 200020122 is 221020002.

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

It is not an unprimeable number, because it can be changed into a prime (200020127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178672 + ... + 179787.

It is an arithmetic number, because the mean of its divisors is an integer number (18639920).

Almost surely, 2^200020122 is an apocalyptic number.

200020122 is an abundant number, since it is smaller than the sum of its proper divisors (247337958).

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

200020122 is a wasteful number, since it uses less digits than its factorization.

200020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358498 (or 358495 counting only the distinct ones).

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

The square root of 200020122 is about 14142.8470259704. The cubic root of 200020122 is about 584.8231593465.

Adding to 200020122 its reverse (221020002), we get a palindrome (421040124).

It can be divided in two parts, 2000 and 20122, that added together give a palindrome (22122).

The spelling of 200020122 in words is "two hundred million, twenty thousand, one hundred twenty-two".