1212220210199 has 4 divisors (see below), whose sum is σ = 1224222390600. Its totient is φ = 1200218029800.

The previous prime is 1212220210183. The next prime is 1212220210237. The reversal of 1212220210199 is 9910120222121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212220210199 - 2⁴ = 1212220210183 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 (1212220210169) 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 3 ways as a sum of consecutive naturals, for example, 6001090049 + ... + 6001090250.

It is an arithmetic number, because the mean of its divisors is an integer number (306055597650).

Almost surely, 2^{1212220210199} is an apocalyptic number.

1212220210199 is a deficient number, since it is larger than the sum of its proper divisors (12002180401).

1212220210199 is a wasteful number, since it uses less digits than its factorization.

1212220210199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12002180400.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 1212220210199 in words is "one trillion, two hundred twelve billion, two hundred twenty million, two hundred ten thousand, one hundred ninety-nine".