120201201021 has 16 divisors (see below), whose sum is σ = 174867107328. Its totient is φ = 72837130800.

The previous prime is 120201200993. The next prime is 120201201031. The reversal of 120201201021 is 120102102021.

It is not a de Polignac number, because 120201201021 - 2⁵ = 120201200989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120201200988 and 120201201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201201031) 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 15 ways as a sum of consecutive naturals, for example, 98001 + ... + 500006.

It is an arithmetic number, because the mean of its divisors is an integer number (10929194208).

Almost surely, 2^120201201021 is an apocalyptic number.

120201201021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120201201021 is a deficient number, since it is larger than the sum of its proper divisors (54665906307).

120201201021 is a wasteful number, since it uses less digits than its factorization.

120201201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604112.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120201201021 its reverse (120102102021), we get a palindrome (240303303042).

The spelling of 120201201021 in words is "one hundred twenty billion, two hundred one million, two hundred one thousand, twenty-one".