1012211311201 has 4 divisors (see below), whose sum is σ = 1036899392004. Its totient is φ = 987523230400.

The previous prime is 1012211311169. The next prime is 1012211311259. The reversal of 1012211311201 is 1021131122101.

It is a happy number.

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 180875837025 + 831335474176 = 425295^2 + 911776^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012211311201 - 2⁵ = 1012211311169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012211311261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12344040340 + ... + 12344040421.

It is an arithmetic number, because the mean of its divisors is an integer number (259224848001).

Almost surely, 2^{1012211311201} is an apocalyptic number.

It is an amenable number.

1012211311201 is a deficient number, since it is larger than the sum of its proper divisors (24688080803).

1012211311201 is an equidigital number, since it uses as much as digits as its factorization.

1012211311201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24688080802.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1012211311201 its reverse (1021131122101), we get a palindrome (2033342433302).

The spelling of 1012211311201 in words is "one trillion, twelve billion, two hundred eleven million, three hundred eleven thousand, two hundred one".