1212021202133 has 8 divisors (see below), whose sum is σ = 1392198394752. Its totient is φ = 1033601836176.

The previous prime is 1212021202129. The next prime is 1212021202159. The reversal of 1212021202133 is 3312021202121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212021202133 - 2² = 1212021202129 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 (1212021202103) 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, 439455185 + ... + 439457942.

It is an arithmetic number, because the mean of its divisors is an integer number (174024799344).

Almost surely, 2^{1212021202133} is an apocalyptic number.

It is an amenable number.

1212021202133 is a deficient number, since it is larger than the sum of its proper divisors (180177192619).

1212021202133 is an equidigital number, since it uses as much as digits as its factorization.

1212021202133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878913331.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1212021202133 its reverse (3312021202121), we get a palindrome (4524042404254).

The spelling of 1212021202133 in words is "one trillion, two hundred twelve billion, twenty-one million, two hundred two thousand, one hundred thirty-three".