200100121002 has 24 divisors (see below), whose sum is σ = 433638023520. Its totient is φ = 66686538600.

The previous prime is 200100120989. The next prime is 200100121019. The reversal of 200100121002 is 200121001002.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1033552 + ... + 1211787.

It is an arithmetic number, because the mean of its divisors is an integer number (18068250980).

Almost surely, 2^200100121002 is an apocalyptic number.

200100121002 is an abundant number, since it is smaller than the sum of its proper divisors (233537902518).

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

200100121002 is a wasteful number, since it uses less digits than its factorization.

200100121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250298 (or 2250295 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 200100121002 its reverse (200121001002), we get a palindrome (400221122004).

The spelling of 200100121002 in words is "two hundred billion, one hundred million, one hundred twenty-one thousand, two".