121200222121222 has 8 divisors (see below), whose sum is σ = 181800464132376. Its totient is φ = 60600067410432.

The previous prime is 121200222121183. The next prime is 121200222121273. The reversal of 121200222121222 is 222121222002121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121200222121193 and 121200222121202.

It is a congruent number.

It is an unprimeable number.

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, 18236283 + ... + 23978374.

It is an arithmetic number, because the mean of its divisors is an integer number (22725058016547).

Almost surely, 2^{121200222121222} is an apocalyptic number.

121200222121222 is a deficient number, since it is larger than the sum of its proper divisors (60600242011154).

121200222121222 is a wasteful number, since it uses less digits than its factorization.

121200222121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43650182.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121200222121222 its reverse (222121222002121), we get a palindrome (343321444123343).

The spelling of 121200222121222 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-two".