1201100120122 has 16 divisors (see below), whose sum is σ = 2060052708672. Its totient is φ = 514501211520.

The previous prime is 1201100120089. The next prime is 1201100120149. The reversal of 1201100120122 is 2210210011021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21302743 + ... + 21359050.

It is an arithmetic number, because the mean of its divisors is an integer number (128753294292).

Almost surely, 2^{1201100120122} is an apocalyptic number.

1201100120122 is a deficient number, since it is larger than the sum of its proper divisors (858952588550).

1201100120122 is a wasteful number, since it uses less digits than its factorization.

1201100120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42663813.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1201100120122 its reverse (2210210011021), we get a palindrome (3411310131143).

The spelling of 1201100120122 in words is "one trillion, two hundred one billion, one hundred million, one hundred twenty thousand, one hundred twenty-two".