1222100121118 has 8 divisors (see below), whose sum is σ = 1833258185640. Its totient is φ = 611014059240.

The previous prime is 1222100121101. The next prime is 1222100121119. The reversal of 1222100121118 is 8111210012221.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222100121119) 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, 17958208 + ... + 18026131.

It is an arithmetic number, because the mean of its divisors is an integer number (229157273205).

Almost surely, 2^{1222100121118} is an apocalyptic number.

1222100121118 is a deficient number, since it is larger than the sum of its proper divisors (611158064522).

1222100121118 is a wasteful number, since it uses less digits than its factorization.

1222100121118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36001322.

The product of its (nonzero) digits is 128, while the sum is 22.

Adding to 1222100121118 its reverse (8111210012221), we get a palindrome (9333310133339).

The spelling of 1222100121118 in words is "one trillion, two hundred twenty-two billion, one hundred million, one hundred twenty-one thousand, one hundred eighteen".