120021201091 has 8 divisors (see below), whose sum is σ = 131044814784. Its totient is φ = 109016353320.

The previous prime is 120021201073. The next prime is 120021201121. The reversal of 120021201091 is 190102120021.

It is a happy number.

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 120021201091 - 2⁷ = 120021200963 is a prime.

It is a super-2 number, since 2×120021201091² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120021201031) 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, 4678101 + ... + 4703686.

It is an arithmetic number, because the mean of its divisors is an integer number (16380601848).

Almost surely, 2^120021201091 is an apocalyptic number.

120021201091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120021201091 is a deficient number, since it is larger than the sum of its proper divisors (11023613693).

120021201091 is a wasteful number, since it uses less digits than its factorization.

120021201091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9382961.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 120021201091 in words is "one hundred twenty billion, twenty-one million, two hundred one thousand, ninety-one".