121222212010199 has 4 divisors (see below), whose sum is σ = 123801408010464. Its totient is φ = 118643016009936.

The previous prime is 121222212010183. The next prime is 121222212010201. The reversal of 121222212010199 is 991010212222121.

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 121222212010199 - 2⁴ = 121222212010183 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 (121222212010099) 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, 1289598000062 + ... + 1289598000155.

It is an arithmetic number, because the mean of its divisors is an integer number (30950352002616).

Almost surely, 2^{121222212010199} is an apocalyptic number.

121222212010199 is a deficient number, since it is larger than the sum of its proper divisors (2579196000265).

121222212010199 is an equidigital number, since it uses as much as digits as its factorization.

121222212010199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579196000264.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 121222212010199 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred twelve million, ten thousand, one hundred ninety-nine".