1200212002020 has 24 divisors (see below), whose sum is σ = 3360593605824. Its totient is φ = 320056533856.

The previous prime is 1200212002013. The next prime is 1200212002039. The reversal of 1200212002020 is 202002120021.

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 = 1200212001987 and 1200212002005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10001766624 + ... + 10001766743.

It is an arithmetic number, because the mean of its divisors is an integer number (140024733576).

Almost surely, 2^{1200212002020} is an apocalyptic number.

1200212002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200212002020 is an abundant number, since it is smaller than the sum of its proper divisors (2160381603804).

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

1200212002020 is a wasteful number, since it uses less digits than its factorization.

1200212002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20003533379 (or 20003533377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1200212002020 its reverse (202002120021), we get a palindrome (1402214122041).

The spelling of 1200212002020 in words is "one trillion, two hundred billion, two hundred twelve million, two thousand, twenty".