201012020001020 has 48 divisors (see below), whose sum is σ = 427543705330560. Its totient is φ = 79373077395456.

The previous prime is 201012020000993. The next prime is 201012020001061. The reversal of 201012020001020 is 20100020210102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201012020000992 and 201012020001010.

It is a congruent number.

It is an unprimeable number.

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, 2178677 + ... + 20168556.

It is an arithmetic number, because the mean of its divisors is an integer number (8907160527720).

Almost surely, 2^{201012020001020} is an apocalyptic number.

201012020001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201012020001020 is an abundant number, since it is smaller than the sum of its proper divisors (226531685329540).

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

201012020001020 is a wasteful number, since it uses less digits than its factorization.

201012020001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22353014 (or 22353012 counting only the distinct ones).

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

Adding to 201012020001020 its reverse (20100020210102), we get a palindrome (221112040211122).

The spelling of 201012020001020 in words is "two hundred one trillion, twelve billion, twenty million, one thousand, twenty".