1213333220111 has 8 divisors (see below), whose sum is σ = 1219789411104. Its totient is φ = 1206890989920.

The previous prime is 1213333220063. The next prime is 1213333220117. The reversal of 1213333220111 is 1110223333121.

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 1213333220111 - 2¹⁴ = 1213333203727 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 (1213333220117) 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, 3315896 + ... + 3663581.

It is an arithmetic number, because the mean of its divisors is an integer number (152473676388).

Almost surely, 2^{1213333220111} is an apocalyptic number.

1213333220111 is a deficient number, since it is larger than the sum of its proper divisors (6456190993).

1213333220111 is an equidigital number, since it uses as much as digits as its factorization.

1213333220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6980401.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1213333220111 its reverse (1110223333121), we get a palindrome (2323556553232).

The spelling of 1213333220111 in words is "one trillion, two hundred thirteen billion, three hundred thirty-three million, two hundred twenty thousand, one hundred eleven".