1211322211201 has 8 divisors (see below), whose sum is σ = 1211680965600. Its totient is φ = 1210963524672.

The previous prime is 1211322211171. The next prime is 1211322211219. The reversal of 1211322211201 is 1021122231121.

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 1211322211201 - 2²⁷ = 1211187993473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211322211301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70833150 + ... + 70850248.

It is an arithmetic number, because the mean of its divisors is an integer number (151460120700).

Almost surely, 2^{1211322211201} is an apocalyptic number.

It is an amenable number.

1211322211201 is a deficient number, since it is larger than the sum of its proper divisors (358754399).

1211322211201 is an equidigital number, since it uses as much as digits as its factorization.

1211322211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33935.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1211322211201 its reverse (1021122231121), we get a palindrome (2232444442322).

The spelling of 1211322211201 in words is "one trillion, two hundred eleven billion, three hundred twenty-two million, two hundred eleven thousand, two hundred one".