201102100012020 has 48 divisors (see below), whose sum is σ = 587567874821760. Its totient is φ = 51295608118656.

The previous prime is 201102100012007. The next prime is 201102100012087. The reversal of 201102100012020 is 20210001201102.

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 = 201102100011987 and 201102100012005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72863078335 + ... + 72863081094.

It is an arithmetic number, because the mean of its divisors is an integer number (12240997392120).

Almost surely, 2^{201102100012020} is an apocalyptic number.

201102100012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201102100012020 is an abundant number, since it is smaller than the sum of its proper divisors (386465774809740).

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

201102100012020 is a wasteful number, since it uses less digits than its factorization.

201102100012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145726159464 (or 145726159462 counting only the distinct ones).

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

Adding to 201102100012020 its reverse (20210001201102), we get a palindrome (221312101213122).

The spelling of 201102100012020 in words is "two hundred one trillion, one hundred two billion, one hundred million, twelve thousand, twenty".