1212211012193 has 8 divisors (see below), whose sum is σ = 1318207206312. Its totient is φ = 1110069225216.

The previous prime is 1212211012183. The next prime is 1212211012219. The reversal of 1212211012193 is 3912101122121.

It can be written as a sum of positive squares in 4 ways, for example, as 830555177104 + 381655835089 = 911348^2 + 617783^2 .

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 1212211012193 - 2¹⁰ = 1212211011169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212211012183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963601130 + ... + 963602387.

It is an arithmetic number, because the mean of its divisors is an integer number (164775900789).

Almost surely, 2^{1212211012193} is an apocalyptic number.

It is an amenable number.

1212211012193 is a deficient number, since it is larger than the sum of its proper divisors (105996194119).

1212211012193 is a wasteful number, since it uses less digits than its factorization.

1212211012193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927203571.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 1212211012193 in words is "one trillion, two hundred twelve billion, two hundred eleven million, twelve thousand, one hundred ninety-three".