1001200221012 has 12 divisors (see below), whose sum is σ = 2336133849056. Its totient is φ = 333733407000.

The previous prime is 1001200220963. The next prime is 1001200221019. The reversal of 1001200221012 is 2101220021001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 83433351751 = 1001200221012 / (1 + 0 + 0 + 1 + 2 + 0 + 0 + 2 + 2 + 1 + 0 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001200221019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41716675864 + ... + 41716675887.

Almost surely, 2^{1001200221012} is an apocalyptic number.

1001200221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001200221012 is an abundant number, since it is smaller than the sum of its proper divisors (1334933628044).

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

1001200221012 is a wasteful number, since it uses less digits than its factorization.

1001200221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83433351758 (or 83433351756 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1001200221012 its reverse (2101220021001), we get a palindrome (3102420242013).

The spelling of 1001200221012 in words is "one trillion, one billion, two hundred million, two hundred twenty-one thousand, twelve".