1211201211202 has 4 divisors (see below), whose sum is σ = 1816801816806. Its totient is φ = 605600605600.

The previous prime is 1211201211193. The next prime is 1211201211217. The reversal of 1211201211202 is 2021121021121.

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

It can be written as a sum of positive squares in only one way, i.e., 971484238321 + 239716972881 = 985639^2 + 489609^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302800302799 + ... + 302800302802.

Almost surely, 2^{1211201211202} is an apocalyptic number.

1211201211202 is a deficient number, since it is larger than the sum of its proper divisors (605600605604).

1211201211202 is an equidigital number, since it uses as much as digits as its factorization.

1211201211202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605600605603.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1211201211202 its reverse (2021121021121), we get a palindrome (3232322232323).

The spelling of 1211201211202 in words is "one trillion, two hundred eleven billion, two hundred one million, two hundred eleven thousand, two hundred two".