201201012011 has 4 divisors (see below), whose sum is σ = 202035871224. Its totient is φ = 200366152800.

The previous prime is 201201012007. The next prime is 201201012013. The reversal of 201201012011 is 110210102102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110210102102 = 2 ⋅55105051051.

It is a cyclic number.

It is not a de Polignac number, because 201201012011 - 2² = 201201012007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201201011983 and 201201012001.

It is not an unprimeable number, because it can be changed into a prime (201201012013) 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, 417429245 + ... + 417429726.

It is an arithmetic number, because the mean of its divisors is an integer number (50508967806).

Almost surely, 2^201201012011 is an apocalyptic number.

201201012011 is a deficient number, since it is larger than the sum of its proper divisors (834859213).

201201012011 is an equidigital number, since it uses as much as digits as its factorization.

201201012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834859212.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201201012011 its reverse (110210102102), we get a palindrome (311411114113).

Subtracting from 201201012011 its reverse (110210102102), we obtain a palindrome (90990909909).

The spelling of 201201012011 in words is "two hundred one billion, two hundred one million, twelve thousand, eleven".