1001020211012 has 12 divisors (see below), whose sum is σ = 1751800021356. Its totient is φ = 500505919200.

The previous prime is 1001020210919. The next prime is 1001020211021. The reversal of 1001020211012 is 2101120201001.

It can be written as a sum of positive squares in 2 ways, for example, as 775220377156 + 225799833856 = 880466^2 + 475184^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1001020210984 and 1001020211002.

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 3 ways as a sum of consecutive naturals, for example, 473723 + ... + 1492130.

It is an arithmetic number, because the mean of its divisors is an integer number (145983335113).

Almost surely, 2^{1001020211012} is an apocalyptic number.

It is an amenable number.

1001020211012 is a deficient number, since it is larger than the sum of its proper divisors (750779810344).

1001020211012 is a wasteful number, since it uses less digits than its factorization.

1001020211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093158 (or 2093156 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1001020211012 its reverse (2101120201001), we get a palindrome (3102140412013).

The spelling of 1001020211012 in words is "one trillion, one billion, twenty million, two hundred eleven thousand, twelve".