1212231110233 has 32 divisors (see below), whose sum is σ = 1432292077440. Its totient is φ = 1011462389760.

The previous prime is 1212231110231. The next prime is 1212231110249. The reversal of 1212231110233 is 3320111322121.

It is a cyclic number.

It is not a de Polignac number, because 1212231110233 - 2¹ = 1212231110231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212231110231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20440698 + ... + 20499916.

It is an arithmetic number, because the mean of its divisors is an integer number (44759127420).

Almost surely, 2^{1212231110233} is an apocalyptic number.

1212231110233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1212231110233 is a deficient number, since it is larger than the sum of its proper divisors (220060967207).

1212231110233 is a wasteful number, since it uses less digits than its factorization.

1212231110233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60057.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1212231110233 its reverse (3320111322121), we get a palindrome (4532342432354).

The spelling of 1212231110233 in words is "one trillion, two hundred twelve billion, two hundred thirty-one million, one hundred ten thousand, two hundred thirty-three".