1212210212193 has 6 divisors (see below), whose sum is σ = 1750970306514. Its totient is φ = 808140141456.

The previous prime is 1212210212189. The next prime is 1212210212231. The reversal of 1212210212193 is 3912120122121.

1212210212193 is a `hidden beast` number, since 1 + 212 + 210 + 21 + 219 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1054868676624 + 157341535569 = 1027068^2 + 396663^2 .

It is not a de Polignac number, because 1212210212193 - 2² = 1212210212189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212210212393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67345011780 + ... + 67345011797.

It is an arithmetic number, because the mean of its divisors is an integer number (291828384419).

Almost surely, 2^{1212210212193} is an apocalyptic number.

It is an amenable number.

1212210212193 is a deficient number, since it is larger than the sum of its proper divisors (538760094321).

1212210212193 is a wasteful number, since it uses less digits than its factorization.

1212210212193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134690023583 (or 134690023580 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 1212210212193 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred twelve thousand, one hundred ninety-three".