1201211012201 has 4 divisors (see below), whose sum is σ = 1201224540804. Its totient is φ = 1201197483600.

The previous prime is 1201211012159. The next prime is 1201211012203. The reversal of 1201211012201 is 1022101121021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 509446200025 + 691764812176 = 713755^2 + 831724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201211012201 - 2¹⁰ = 1201211011177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201211012203) 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, 6630230 + ... + 6808991.

It is an arithmetic number, because the mean of its divisors is an integer number (300306135201).

Almost surely, 2^{1201211012201} is an apocalyptic number.

It is an amenable number.

1201211012201 is a deficient number, since it is larger than the sum of its proper divisors (13528603).

1201211012201 is an equidigital number, since it uses as much as digits as its factorization.

1201211012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13528602.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1201211012201 its reverse (1022101121021), we get a palindrome (2223312133222).

The spelling of 1201211012201 in words is "one trillion, two hundred one billion, two hundred eleven million, twelve thousand, two hundred one".