1211200102201 has 8 divisors (see below), whose sum is σ = 1235316091464. Its totient is φ = 1187130896640.

The previous prime is 1211200102183. The next prime is 1211200102223. The reversal of 1211200102201 is 1022010021121.

It can be written as a sum of positive squares in 4 ways, for example, as 929828204176 + 281371898025 = 964276^2 + 530445^2 .

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 1211200102201 - 2³³ = 1202610167609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211200102261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11643630 + ... + 11747191.

It is an arithmetic number, because the mean of its divisors is an integer number (154414511433).

Almost surely, 2^{1211200102201} is an apocalyptic number.

It is an amenable number.

1211200102201 is a deficient number, since it is larger than the sum of its proper divisors (24115989263).

1211200102201 is an equidigital number, since it uses as much as digits as its factorization.

1211200102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23391851.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1211200102201 its reverse (1022010021121), we get a palindrome (2233210123322).

The spelling of 1211200102201 in words is "one trillion, two hundred eleven billion, two hundred million, one hundred two thousand, two hundred one".