120012221100121 has 32 divisors (see below), whose sum is σ = 143200612712448. Its totient is φ = 98339819497920.

The previous prime is 120012221100119. The next prime is 120012221100151. The reversal of 120012221100121 is 121001122210021.

It is not a de Polignac number, because 120012221100121 - 2¹ = 120012221100119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120012221100095 and 120012221100104.

It is not an unprimeable number, because it can be changed into a prime (120012221100151) 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 31 ways as a sum of consecutive naturals, for example, 2513689576 + ... + 2513737318.

It is an arithmetic number, because the mean of its divisors is an integer number (4475019147264).

Almost surely, 2^{120012221100121} is an apocalyptic number.

It is an amenable number.

120012221100121 is a deficient number, since it is larger than the sum of its proper divisors (23188391612327).

120012221100121 is a wasteful number, since it uses less digits than its factorization.

120012221100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56221.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120012221100121 its reverse (121001122210021), we get a palindrome (241013343310142).

The spelling of 120012221100121 in words is "one hundred twenty trillion, twelve billion, two hundred twenty-one million, one hundred thousand, one hundred twenty-one".