201002011202121 has 16 divisors (see below), whose sum is σ = 269576273044800. Its totient is φ = 133214969357568.

The previous prime is 201002011202081. The next prime is 201002011202129. The reversal of 201002011202121 is 121202110200102.

It is not a de Polignac number, because 201002011202121 - 2⁷ = 201002011201993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201002011202121.

It is not an unprimeable number, because it can be changed into a prime (201002011202129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51137716 + ... + 54927861.

It is an arithmetic number, because the mean of its divisors is an integer number (16848517065300).

Almost surely, 2^{201002011202121} is an apocalyptic number.

It is an amenable number.

201002011202121 is a deficient number, since it is larger than the sum of its proper divisors (68574261842679).

201002011202121 is a wasteful number, since it uses less digits than its factorization.

201002011202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106069288.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201002011202121 its reverse (121202110200102), we get a palindrome (322204121402223).

The spelling of 201002011202121 in words is "two hundred one trillion, two billion, eleven million, two hundred two thousand, one hundred twenty-one".