1001200001010 has 64 divisors (see below), whose sum is σ = 2621462538240. Its totient is φ = 242702290880.

The previous prime is 1001200000987. The next prime is 1001200001051. The reversal of 1001200001010 is 101000021001.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a self number, because there is not a number n which added to its sum of digits gives 1001200001010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7137409 + ... + 7276331.

It is an arithmetic number, because the mean of its divisors is an integer number (40960352160).

Almost surely, 2^{1001200001010} is an apocalyptic number.

1001200001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001200001010 is an abundant number, since it is smaller than the sum of its proper divisors (1620262537230).

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

1001200001010 is a wasteful number, since it uses less digits than its factorization.

1001200001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160783.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 1001200001010 its reverse (101000021001), we get a palindrome (1102200022011).

The spelling of 1001200001010 in words is "one trillion, one billion, two hundred million, one thousand, ten".