1022021010012 has 24 divisors (see below), whose sum is σ = 2384896460800. Its totient is φ = 340647845616.

The previous prime is 1022021009993. The next prime is 1022021010013. The reversal of 1022021010012 is 2100101202201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1022021010012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022021010013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3062812 + ... + 3380067.

Almost surely, 2^{1022021010012} is an apocalyptic number.

1022021010012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022021010012 is an abundant number, since it is smaller than the sum of its proper divisors (1362875450788).

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

1022021010012 is a wasteful number, since it uses less digits than its factorization.

1022021010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6456105 (or 6456103 counting only the distinct ones).

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

Adding to 1022021010012 its reverse (2100101202201), we get a palindrome (3122122212213).

The spelling of 1022021010012 in words is "one trillion, twenty-two billion, twenty-one million, ten thousand, twelve".