130121212020 has 24 divisors (see below), whose sum is σ = 364339393824. Its totient is φ = 34698989856.

The previous prime is 130121212019. The next prime is 130121212033. The reversal of 130121212020 is 20212121031.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 7 ways as a sum of consecutive naturals, for example, 1084343374 + ... + 1084343493.

It is an arithmetic number, because the mean of its divisors is an integer number (15180808076).

Almost surely, 2^130121212020 is an apocalyptic number.

130121212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130121212020 is an abundant number, since it is smaller than the sum of its proper divisors (234218181804).

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

130121212020 is a wasteful number, since it uses less digits than its factorization.

130121212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168686879 (or 2168686877 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 130121212020 its reverse (20212121031), we get a palindrome (150333333051).

The spelling of 130121212020 in words is "one hundred thirty billion, one hundred twenty-one million, two hundred twelve thousand, twenty".