1211012001201 has 8 divisors (see below), whose sum is σ = 1642050171360. Its totient is φ = 793657582592.

The previous prime is 1211012001187. The next prime is 1211012001217. The reversal of 1211012001201 is 1021002101121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1211012001201 - 2⁶ = 1211012001137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1211012001601) 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 7 ways as a sum of consecutive naturals, for example, 3420937680 + ... + 3420938033.

It is an arithmetic number, because the mean of its divisors is an integer number (205256271420).

Almost surely, 2^{1211012001201} is an apocalyptic number.

It is an amenable number.

1211012001201 is a deficient number, since it is larger than the sum of its proper divisors (431038170159).

1211012001201 is an equidigital number, since it uses as much as digits as its factorization.

1211012001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841875775.

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

Adding to 1211012001201 its reverse (1021002101121), we get a palindrome (2232014102322).

The spelling of 1211012001201 in words is "one trillion, two hundred eleven billion, twelve million, one thousand, two hundred one".