1212020200033 has 4 divisors (see below), whose sum is σ = 1234888505748. Its totient is φ = 1189151894320.

The previous prime is 1212020199989. The next prime is 1212020200049. The reversal of 1212020200033 is 3300020202121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 480605268049 + 731414931984 = 693257^2 + 855228^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212020200033 - 2¹³ = 1212020191841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212020200133) 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, 11434152778 + ... + 11434152883.

It is an arithmetic number, because the mean of its divisors is an integer number (308722126437).

Almost surely, 2^{1212020200033} is an apocalyptic number.

It is an amenable number.

1212020200033 is a deficient number, since it is larger than the sum of its proper divisors (22868305715).

1212020200033 is an equidigital number, since it uses as much as digits as its factorization.

1212020200033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22868305714.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1212020200033 its reverse (3300020202121), we get a palindrome (4512040402154).

The spelling of 1212020200033 in words is "one trillion, two hundred twelve billion, twenty million, two hundred thousand, thirty-three".