120021130021 has 8 divisors (see below), whose sum is σ = 131073997824. Its totient is φ = 109228329840.

The previous prime is 120021129947. The next prime is 120021130027. The reversal of 120021130021 is 120031120021.

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 120021130021 - 2¹⁵ = 120021097253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021129983 and 120021130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021130027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65015941 + ... + 65017786.

It is an arithmetic number, because the mean of its divisors is an integer number (16384249728).

Almost surely, 2^120021130021 is an apocalyptic number.

It is an amenable number.

120021130021 is a deficient number, since it is larger than the sum of its proper divisors (11052867803).

120021130021 is a wasteful number, since it uses less digits than its factorization.

120021130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130033811.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120021130021 its reverse (120031120021), we get a palindrome (240052250042).

The spelling of 120021130021 in words is "one hundred twenty billion, twenty-one million, one hundred thirty thousand, twenty-one".