1210000012000 has 96 divisors (see below), whose sum is σ = 3201660169344. Its totient is φ = 446769216000.

The previous prime is 1210000011973. The next prime is 1210000012007. The reversal of 1210000012000 is 2100000121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210000012007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11582616 + ... + 11686615.

It is an arithmetic number, because the mean of its divisors is an integer number (33350626764).

Almost surely, 2^{1210000012000} is an apocalyptic number.

1210000012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210000012000 is an abundant number, since it is smaller than the sum of its proper divisors (1991660157344).

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

1210000012000 is a wasteful number, since it uses less digits than its factorization.

1210000012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23269269 (or 23269251 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1210000012000 its reverse (2100000121), we get a palindrome (1212100012121).

The spelling of 1210000012000 in words is "one trillion, two hundred ten billion, twelve thousand".