1223211101311 has 8 divisors (see below), whose sum is σ = 1249615699200. Its totient is φ = 1196822288088.

The previous prime is 1223211101297. The next prime is 1223211101347. The reversal of 1223211101311 is 1131011123221.

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 1223211101311 - 2¹³ = 1223211093119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223211501311) 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, 3789441 + ... + 4099546.

It is an arithmetic number, because the mean of its divisors is an integer number (156201962400).

Almost surely, 2^{1223211101311} is an apocalyptic number.

1223211101311 is a deficient number, since it is larger than the sum of its proper divisors (26404597889).

1223211101311 is an equidigital number, since it uses as much as digits as its factorization.

1223211101311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7892333.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1223211101311 its reverse (1131011123221), we get a palindrome (2354222224532).

The spelling of 1223211101311 in words is "one trillion, two hundred twenty-three billion, two hundred eleven million, one hundred one thousand, three hundred eleven".