1002011211012 has 96 divisors (see below), whose sum is σ = 2727951520000. Its totient is φ = 286142927616.

The previous prime is 1002011210951. The next prime is 1002011211049. The reversal of 1002011211012 is 2101121102001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8142114 + ... + 8264262.

Almost surely, 2^{1002011211012} is an apocalyptic number.

1002011211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002011211012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1363975760000).

1002011211012 is an abundant number, since it is smaller than the sum of its proper divisors (1725940308988).

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

1002011211012 is a wasteful number, since it uses less digits than its factorization.

1002011211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124170 (or 124154 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1002011211012 its reverse (2101121102001), we get a palindrome (3103132313013).

The spelling of 1002011211012 in words is "one trillion, two billion, eleven million, two hundred eleven thousand, twelve".