121200100222222 has 8 divisors (see below), whose sum is σ = 207771600380976. Its totient is φ = 51942900095232.

The previous prime is 121200100222219. The next prime is 121200100222241. The reversal of 121200100222222 is 222222001002121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121200100222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4328575007923 + ... + 4328575007950.

It is an arithmetic number, because the mean of its divisors is an integer number (25971450047622).

Almost surely, 2^{121200100222222} is an apocalyptic number.

121200100222222 is a deficient number, since it is larger than the sum of its proper divisors (86571500158754).

121200100222222 is an equidigital number, since it uses as much as digits as its factorization.

121200100222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8657150015882.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121200100222222 its reverse (222222001002121), we get a palindrome (343422101224343).

The spelling of 121200100222222 in words is "one hundred twenty-one trillion, two hundred billion, one hundred million, two hundred twenty-two thousand, two hundred twenty-two".