1210000112020 has 48 divisors (see below), whose sum is σ = 2909553026688. Its totient is φ = 414063930240.

The previous prime is 1210000111919. The next prime is 1210000112063. The reversal of 1210000112020 is 202110000121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1210000111988 and 1210000112006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8189551 + ... + 8335990.

It is an arithmetic number, because the mean of its divisors is an integer number (60615688056).

Almost surely, 2^{1210000112020} is an apocalyptic number.

1210000112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210000112020 is an abundant number, since it is smaller than the sum of its proper divisors (1699552914668).

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

1210000112020 is a wasteful number, since it uses less digits than its factorization.

1210000112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16526080 (or 16526078 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1210000112020 its reverse (202110000121), we get a palindrome (1412110112141).

The spelling of 1210000112020 in words is "one trillion, two hundred ten billion, one hundred twelve thousand, twenty".