1000021010012 has 12 divisors (see below), whose sum is σ = 1750114453416. Its totient is φ = 499988309040.

The previous prime is 1000021009943. The next prime is 1000021010017. The reversal of 1000021010012 is 2100101200001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000021010017) 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, 5447414 + ... + 5627997.

It is an arithmetic number, because the mean of its divisors is an integer number (145842871118).

Almost surely, 2^{1000021010012} is an apocalyptic number.

It is an amenable number.

1000021010012 is a deficient number, since it is larger than the sum of its proper divisors (750093443404).

1000021010012 is a wasteful number, since it uses less digits than its factorization.

1000021010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11097988 (or 11097986 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1000021010012 its reverse (2100101200001), we get a palindrome (3100122210013).

The spelling of 1000021010012 in words is "one trillion, twenty-one million, ten thousand, twelve".