1001212020200 has 96 divisors (see below), whose sum is σ = 2776031429760. Its totient is φ = 328347782400.

The previous prime is 1001212020191. The next prime is 1001212020271. The reversal of 1001212020200 is 20202121001.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 15514571 + ... + 15578970.

It is an arithmetic number, because the mean of its divisors is an integer number (28916994060).

Almost surely, 2^{1001212020200} is an apocalyptic number.

1001212020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001212020200 is an abundant number, since it is smaller than the sum of its proper divisors (1774819409560).

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

1001212020200 is a wasteful number, since it uses less digits than its factorization.

1001212020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31093587 (or 31093578 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1001212020200 its reverse (20202121001), we get a palindrome (1021414141201).

The spelling of 1001212020200 in words is "one trillion, one billion, two hundred twelve million, twenty thousand, two hundred".