201111010010121 has 16 divisors (see below), whose sum is σ = 270742199780736. Its totient is φ = 132778853765376.

The previous prime is 201111010010107. The next prime is 201111010010161. The reversal of 201111010010121 is 121010010111102.

It is not a de Polignac number, because 201111010010121 - 2²² = 201111005815817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201111010010097 and 201111010010106.

It is not an unprimeable number, because it can be changed into a prime (201111010010161) 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, 242123350 + ... + 242952543.

It is an arithmetic number, because the mean of its divisors is an integer number (16921387486296).

Almost surely, 2^{201111010010121} is an apocalyptic number.

It is an amenable number.

201111010010121 is a deficient number, since it is larger than the sum of its proper divisors (69631189770615).

201111010010121 is a wasteful number, since it uses less digits than its factorization.

201111010010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485077232.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 201111010010121 its reverse (121010010111102), we get a palindrome (322121020121223).

The spelling of 201111010010121 in words is "two hundred one trillion, one hundred eleven billion, ten million, ten thousand, one hundred twenty-one".