1021202002010 has 48 divisors (see below), whose sum is σ = 1940438867400. Its totient is φ = 386894454912.

The previous prime is 1021202002001. The next prime is 1021202002039. The reversal of 1021202002010 is 102002021201.

It is a happy number.

1021202002010 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 4 ways, for example, as 706636940689 + 314565061321 = 840617^2 + 560861^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1021202001982 and 1021202002000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17258756 + ... + 17317824.

Almost surely, 2^{1021202002010} is an apocalyptic number.

1021202002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021202002010 is a deficient number, since it is larger than the sum of its proper divisors (919236865390).

1021202002010 is a wasteful number, since it uses less digits than its factorization.

1021202002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63903 (or 63884 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1021202002010 its reverse (102002021201), we get a palindrome (1123204023211).

The spelling of 1021202002010 in words is "one trillion, twenty-one billion, two hundred two million, two thousand, ten".