1223121211033 has 4 divisors (see below), whose sum is σ = 1223231224960. Its totient is φ = 1223011197108.

The previous prime is 1223121211003. The next prime is 1223121211043. The reversal of 1223121211033 is 3301121213221.

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 a cyclic number.

It is not a de Polignac number, because 1223121211033 - 2¹³ = 1223121202841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223121210995 and 1223121211013.

It is not an unprimeable number, because it can be changed into a prime (1223121211003) 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, 54990285 + ... + 55012522.

It is an arithmetic number, because the mean of its divisors is an integer number (305807806240).

Almost surely, 2^{1223121211033} is an apocalyptic number.

It is an amenable number.

1223121211033 is a deficient number, since it is larger than the sum of its proper divisors (110013927).

1223121211033 is a wasteful number, since it uses less digits than its factorization.

1223121211033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110013926.

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

Adding to 1223121211033 its reverse (3301121213221), we get a palindrome (4524242424254).

The spelling of 1223121211033 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-one million, two hundred eleven thousand, thirty-three".