201020101202011 has 24 divisors (see below), whose sum is σ = 251829088793520. Its totient is φ = 159047791745472.

The previous prime is 201020101202009. The next prime is 201020101202119. The reversal of 201020101202011 is 110202101020102.

It is not a de Polignac number, because 201020101202011 - 2¹ = 201020101202009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 201020101201982 and 201020101202000.

It is not an unprimeable number, because it can be changed into a prime (201020101262011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100391620 + ... + 102374398.

It is an arithmetic number, because the mean of its divisors is an integer number (10492878699730).

Almost surely, 2^{201020101202011} is an apocalyptic number.

201020101202011 is a deficient number, since it is larger than the sum of its proper divisors (50808987591509).

201020101202011 is a wasteful number, since it uses less digits than its factorization.

201020101202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141963 (or 2141956 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201020101202011 its reverse (110202101020102), we get a palindrome (311222202222113).

The spelling of 201020101202011 in words is "two hundred one trillion, twenty billion, one hundred one million, two hundred two thousand, eleven".