201012002120 has 16 divisors (see below), whose sum is σ = 452277004860. Its totient is φ = 80404800832.

The previous prime is 201012002101. The next prime is 201012002129. The reversal of 201012002120 is 21200210102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 162781585444 + 38230416676 = 403462^2 + 195526^2 .

It is not an unprimeable number, because it can be changed into a prime (201012002129) 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 3 ways as a sum of consecutive naturals, for example, 2512649987 + ... + 2512650066.

Almost surely, 2^201012002120 is an apocalyptic number.

201012002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201012002120 is an abundant number, since it is smaller than the sum of its proper divisors (251265002740).

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

201012002120 is a wasteful number, since it uses less digits than its factorization.

201012002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025300064 (or 5025300060 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201012002120 its reverse (21200210102), we get a palindrome (222212212222).

The spelling of 201012002120 in words is "two hundred one billion, twelve million, two thousand, one hundred twenty".