200121049 has 8 divisors (see below), whose sum is σ = 205856640. Its totient is φ = 194402736.

The previous prime is 200121043. The next prime is 200121073. The reversal of 200121049 is 940121002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 200121049 - 2⁹ = 200120537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200121043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21312 + ... + 29230.

It is an arithmetic number, because the mean of its divisors is an integer number (25732080).

Almost surely, 2^200121049 is an apocalyptic number.

It is an amenable number.

200121049 is a deficient number, since it is larger than the sum of its proper divisors (5735591).

200121049 is an equidigital number, since it uses as much as digits as its factorization.

200121049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8639.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 200121049 is about 14146.4147047936. The cubic root of 200121049 is about 584.9215069887.

The spelling of 200121049 in words is "two hundred million, one hundred twenty-one thousand, forty-nine".