1212323033021 has 8 divisors (see below), whose sum is σ = 1221071211360. Its totient is φ = 1203575232528.

The previous prime is 1212323032939. The next prime is 1212323033039. The reversal of 1212323033021 is 1203303232121.

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 1212323033021 - 2¹⁸ = 1212322770877 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 (1212323033041) 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, 11160050 + ... + 11268156.

It is an arithmetic number, because the mean of its divisors is an integer number (152633901420).

Almost surely, 2^{1212323033021} is an apocalyptic number.

It is an amenable number.

1212323033021 is a deficient number, since it is larger than the sum of its proper divisors (8748178339).

1212323033021 is a wasteful number, since it uses less digits than its factorization.

1212323033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188923.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1212323033021 its reverse (1203303232121), we get a palindrome (2415626265142).

The spelling of 1212323033021 in words is "one trillion, two hundred twelve billion, three hundred twenty-three million, thirty-three thousand, twenty-one".