120021001121001 has 32 divisors (see below), whose sum is σ = 166616340197760. Its totient is φ = 76755595198464.

The previous prime is 120021001120963. The next prime is 120021001121003. The reversal of 120021001121001 is 100121100120021.

It is not a de Polignac number, because 120021001121001 - 2¹⁴ = 120021001104617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120021001121003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146466646 + ... + 147283808.

It is an arithmetic number, because the mean of its divisors is an integer number (5206760631180).

Almost surely, 2^{120021001121001} is an apocalyptic number.

It is an amenable number.

120021001121001 is a deficient number, since it is larger than the sum of its proper divisors (46595339076759).

120021001121001 is a wasteful number, since it uses less digits than its factorization.

120021001121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828105.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120021001121001 its reverse (100121100120021), we get a palindrome (220142101241022).

The spelling of 120021001121001 in words is "one hundred twenty trillion, twenty-one billion, one million, one hundred twenty-one thousand, one".