1012021111012 has 12 divisors (see below), whose sum is σ = 1814232967596. Its totient is φ = 493668834560.

The previous prime is 1012021111009. The next prime is 1012021111061. The reversal of 1012021111012 is 2101111202101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 322231063716 + 689790047296 = 567654^2 + 830536^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1012021110983 and 1012021111001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3085430053 + ... + 3085430380.

It is an arithmetic number, because the mean of its divisors is an integer number (151186080633).

Almost surely, 2^{1012021111012} is an apocalyptic number.

It is an amenable number.

1012021111012 is a deficient number, since it is larger than the sum of its proper divisors (802211856584).

1012021111012 is a wasteful number, since it uses less digits than its factorization.

1012021111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6170860478 (or 6170860476 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1012021111012 its reverse (2101111202101), we get a palindrome (3113132313113).

The spelling of 1012021111012 in words is "one trillion, twelve billion, twenty-one million, one hundred eleven thousand, twelve".