201121201002 has 16 divisors (see below), whose sum is σ = 402569177472. Its totient is φ = 66985937760.

The previous prime is 201121200979. The next prime is 201121201003. The reversal of 201121201002 is 200102121102.

It is not an unprimeable number, because it can be changed into a prime (201121201003) 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 7 ways as a sum of consecutive naturals, for example, 13607643 + ... + 13622414.

It is an arithmetic number, because the mean of its divisors is an integer number (25160573592).

Almost surely, 2^201121201002 is an apocalyptic number.

201121201002 is an abundant number, since it is smaller than the sum of its proper divisors (201447976470).

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

201121201002 is a wasteful number, since it uses less digits than its factorization.

201121201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27231293.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201121201002 its reverse (200102121102), we get a palindrome (401223322104).

The spelling of 201121201002 in words is "two hundred one billion, one hundred twenty-one million, two hundred one thousand, two".