12100220101020 has 96 divisors (see below), whose sum is σ = 34595427521088. Its totient is φ = 3159293386752.

The previous prime is 12100220101003. The next prime is 12100220101031. The reversal of 12100220101020 is 2010102200121.

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 = 12100220100987 and 12100220101005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9482449 + ... + 10682568.

It is an arithmetic number, because the mean of its divisors is an integer number (360369036678).

Almost surely, 2^{12100220101020} is an apocalyptic number.

12100220101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100220101020 is an abundant number, since it is smaller than the sum of its proper divisors (22495207420068).

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

12100220101020 is a wasteful number, since it uses less digits than its factorization.

12100220101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20165239 (or 20165237 counting only the distinct ones).

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

Adding to 12100220101020 its reverse (2010102200121), we get a palindrome (14110322301141).

The spelling of 12100220101020 in words is "twelve trillion, one hundred billion, two hundred twenty million, one hundred one thousand, twenty".