201001020202105 has 16 divisors (see below), whose sum is σ = 245752958178000. Its totient is φ = 157766345820928.

The previous prime is 201001020202079. The next prime is 201001020202139. The reversal of 201001020202105 is 501202020100102.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 37816005878784 + 163185014323321 = 6149472^2 + 12774389^2 .

It is a cyclic number.

It is not a de Polignac number, because 201001020202105 - 2⁹ = 201001020201593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100170039 + ... + 102156931.

It is an arithmetic number, because the mean of its divisors is an integer number (15359559886125).

Almost surely, 2^{201001020202105} is an apocalyptic number.

It is an amenable number.

201001020202105 is a deficient number, since it is larger than the sum of its proper divisors (44751937975895).

201001020202105 is a wasteful number, since it uses less digits than its factorization.

201001020202105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368700.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 201001020202105 its reverse (501202020100102), we get a palindrome (702203040302207).

The spelling of 201001020202105 in words is "two hundred one trillion, one billion, twenty million, two hundred two thousand, one hundred five".