201121200001002 has 32 divisors (see below), whose sum is σ = 416230808112000. Its totient is φ = 64710309543488.

The previous prime is 201121200000971. The next prime is 201121200001027. The reversal of 201121200001002 is 200100002121102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163246377 + ... + 164473772.

It is an arithmetic number, because the mean of its divisors is an integer number (13007212753500).

Almost surely, 2^{201121200001002} is an apocalyptic number.

201121200001002 is an abundant number, since it is smaller than the sum of its proper divisors (215109608110998).

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

201121200001002 is a wasteful number, since it uses less digits than its factorization.

201121200001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327723710.

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

Adding to 201121200001002 its reverse (200100002121102), we get a palindrome (401221202122104).

The spelling of 201121200001002 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred million, one thousand, two".