120001122021121 has 8 divisors (see below), whose sum is σ = 130910502744000. Its totient is φ = 109091772600240.

The previous prime is 120001122021103. The next prime is 120001122021223. The reversal of 120001122021121 is 121120221100021.

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

It is a cyclic number.

It is not a de Polignac number, because 120001122021121 - 2²⁵ = 120001088466689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120001122021095 and 120001122021104.

It is not an unprimeable number, because it can be changed into a prime (120001126021121) by changing a digit.

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, 583180 + ... + 15502978.

It is an arithmetic number, because the mean of its divisors is an integer number (16363812843000).

Almost surely, 2^{120001122021121} is an apocalyptic number.

120001122021121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120001122021121 is a deficient number, since it is larger than the sum of its proper divisors (10909380722879).

120001122021121 is a wasteful number, since it uses less digits than its factorization.

120001122021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15650999.

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

Adding to 120001122021121 its reverse (121120221100021), we get a palindrome (241121343121142).

The spelling of 120001122021121 in words is "one hundred twenty trillion, one billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty-one".