1212401110233 has 4 divisors (see below), whose sum is σ = 1616534813648. Its totient is φ = 808267406820.

The previous prime is 1212401110213. The next prime is 1212401110243. The reversal of 1212401110233 is 3320111042121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1212401110233 - 2⁶ = 1212401110169 is a prime.

It is a super-2 number, since 2×1212401110233² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212401110213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202066851703 + ... + 202066851708.

It is an arithmetic number, because the mean of its divisors is an integer number (404133703412).

Almost surely, 2^{1212401110233} is an apocalyptic number.

It is an amenable number.

1212401110233 is a deficient number, since it is larger than the sum of its proper divisors (404133703415).

1212401110233 is an equidigital number, since it uses as much as digits as its factorization.

1212401110233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404133703414.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1212401110233 its reverse (3320111042121), we get a palindrome (4532512152354).

The spelling of 1212401110233 in words is "one trillion, two hundred twelve billion, four hundred one million, one hundred ten thousand, two hundred thirty-three".