1212191922133 has 4 divisors (see below), whose sum is σ = 1216664955328. Its totient is φ = 1207718888940.

The previous prime is 1212191922121. The next prime is 1212191922197. The reversal of 1212191922133 is 3312291912121.

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 1212191922133 - 2⁵ = 1212191922101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212191922092 and 1212191922101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212191922433) 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, 2236516191 + ... + 2236516732.

It is an arithmetic number, because the mean of its divisors is an integer number (304166238832).

Almost surely, 2^{1212191922133} is an apocalyptic number.

It is an amenable number.

1212191922133 is a deficient number, since it is larger than the sum of its proper divisors (4473033195).

1212191922133 is an equidigital number, since it uses as much as digits as its factorization.

1212191922133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473033194.

The product of its digits is 11664, while the sum is 37.

The spelling of 1212191922133 in words is "one trillion, two hundred twelve billion, one hundred ninety-one million, nine hundred twenty-two thousand, one hundred thirty-three".