201021012120 has 32 divisors (see below), whose sum is σ = 603063036720. Its totient is φ = 53605603200.

The previous prime is 201021012103. The next prime is 201021012221. The reversal of 201021012120 is 21210120102.

201021012120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 201021012096 and 201021012105.

It is a congruent number.

It is an unprimeable number.

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, 837587431 + ... + 837587670.

Almost surely, 2^201021012120 is an apocalyptic number.

201021012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201021012120 is an abundant number, since it is smaller than the sum of its proper divisors (402042024600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201021012120 is a wasteful number, since it uses less digits than its factorization.

201021012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675175115 (or 1675175111 counting only the distinct ones).

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

Adding to 201021012120 its reverse (21210120102), we get a palindrome (222231132222).

The spelling of 201021012120 in words is "two hundred one billion, twenty-one million, twelve thousand, one hundred twenty".