200120242 has 32 divisors (see below), whose sum is σ = 356140800. Its totient is φ = 82517568.

The previous prime is 200120203. The next prime is 200120251. The reversal of 200120242 is 242021002.

It is a super-2 number, since 2×200120242² = 80096222516277128, which contains 22 as substring.

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, 145068 + ... + 146440.

It is an arithmetic number, because the mean of its divisors is an integer number (11129400).

Almost surely, 2^200120242 is an apocalyptic number.

200120242 is a deficient number, since it is larger than the sum of its proper divisors (156020558).

200120242 is a wasteful number, since it uses less digits than its factorization.

200120242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 200120242 is about 14146.3861816366. The cubic root of 200120242 is about 584.9207207441.

Adding to 200120242 its reverse (242021002), we get a palindrome (442141244).

The spelling of 200120242 in words is "two hundred million, one hundred twenty thousand, two hundred forty-two".