1002022021012 has 12 divisors (see below), whose sum is σ = 1753554485620. Its totient is φ = 501006453696.

The previous prime is 1002022020997. The next prime is 1002022021019. The reversal of 1002022021012 is 2101202202001.

It is a happy number.

1002022021012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 196741925136 + 805280095876 = 443556^2 + 897374^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1002022020983 and 1002022021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002022021019) 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, 617937 + ... + 1544632.

Almost surely, 2^{1002022021012} is an apocalyptic number.

It is an amenable number.

1002022021012 is a deficient number, since it is larger than the sum of its proper divisors (751532464608).

1002022021012 is a wasteful number, since it uses less digits than its factorization.

1002022021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278410 (or 2278408 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002022021012 its reverse (2101202202001), we get a palindrome (3103224223013).

The spelling of 1002022021012 in words is "one trillion, two billion, twenty-two million, twenty-one thousand, twelve".