10200121002 has 48 divisors (see below), whose sum is σ = 22711377312. Its totient is φ = 3306134880.

The previous prime is 10200120947. The next prime is 10200121007. The reversal of 10200121002 is 20012100201.

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 (10200121007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1415653 + ... + 1422839.

It is an arithmetic number, because the mean of its divisors is an integer number (473153694).

Almost surely, 2^10200121002 is an apocalyptic number.

10200121002 is an abundant number, since it is smaller than the sum of its proper divisors (12511256310).

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

10200121002 is a wasteful number, since it uses less digits than its factorization.

10200121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9363 (or 9360 counting only the distinct ones).

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

Adding to 10200121002 its reverse (20012100201), we get a palindrome (30212221203).

The spelling of 10200121002 in words is "ten billion, two hundred million, one hundred twenty-one thousand, two".