201121120201011 has 4 divisors (see below), whose sum is σ = 268161493601352. Its totient is φ = 134080746800672.

The previous prime is 201121120201009. The next prime is 201121120201013. The reversal of 201121120201011 is 110102021121102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (201121120201009) and next prime (201121120201013).

It is a cyclic number.

It is not a de Polignac number, because 201121120201011 - 2¹ = 201121120201009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201121120201013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33520186700166 + ... + 33520186700171.

It is an arithmetic number, because the mean of its divisors is an integer number (67040373400338).

Almost surely, 2^{201121120201011} is an apocalyptic number.

201121120201011 is a deficient number, since it is larger than the sum of its proper divisors (67040373400341).

201121120201011 is an equidigital number, since it uses as much as digits as its factorization.

201121120201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67040373400340.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201121120201011 its reverse (110102021121102), we get a palindrome (311223141322113).

The spelling of 201121120201011 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred twenty million, two hundred one thousand, eleven".