1201210012011 has 24 divisors (see below), whose sum is σ = 1668957094224. Its totient is φ = 768032584960.

The previous prime is 1201210011959. The next prime is 1201210012033. The reversal of 1201210012011 is 1102100121021.

It is not a de Polignac number, because 1201210012011 - 2⁹ = 1201210011499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201210012061) 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, 974586 + ... + 1830911.

It is an arithmetic number, because the mean of its divisors is an integer number (69539878926).

Almost surely, 2^{1201210012011} is an apocalyptic number.

1201210012011 is a deficient number, since it is larger than the sum of its proper divisors (467747082213).

1201210012011 is an equidigital number, since it uses as much as digits as its factorization.

1201210012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805659 (or 2805600 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1201210012011 its reverse (1102100121021), we get a palindrome (2303310133032).

The spelling of 1201210012011 in words is "one trillion, two hundred one billion, two hundred ten million, twelve thousand, eleven".