200121100989 has 8 divisors (see below), whose sum is σ = 268747762080. Its totient is φ = 132454253616.

The previous prime is 200121100967. The next prime is 200121101003. The reversal of 200121100989 is 989001121002.

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

It is not a de Polignac number, because 200121100989 - 2⁸ = 200121100733 is a prime.

It is a super-2 number, since 2×200121100989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121100189) 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, 239952942 + ... + 239953775.

It is an arithmetic number, because the mean of its divisors is an integer number (33593470260).

Almost surely, 2^200121100989 is an apocalyptic number.

It is an amenable number.

200121100989 is a deficient number, since it is larger than the sum of its proper divisors (68626661091).

200121100989 is a wasteful number, since it uses less digits than its factorization.

200121100989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479906859.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 200121100989 in words is "two hundred billion, one hundred twenty-one million, one hundred thousand, nine hundred eighty-nine".