1010110002021 has 24 divisors (see below), whose sum is σ = 1570199940504. Its totient is φ = 623404431360.

The previous prime is 1010110001993. The next prime is 1010110002053. The reversal of 1010110002021 is 1202000110101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16150851396 + 993959150625 = 127086^2 + 996975^2 .

It is not a de Polignac number, because 1010110002021 - 2¹¹ = 1010109999973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1010110001994 and 1010110002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010110002521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54105636 + ... + 54124301.

It is an arithmetic number, because the mean of its divisors is an integer number (65424997521).

Almost surely, 2^{1010110002021} is an apocalyptic number.

It is an amenable number.

1010110002021 is a deficient number, since it is larger than the sum of its proper divisors (560089938483).

1010110002021 is a wasteful number, since it uses less digits than its factorization.

1010110002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108230021 (or 108230018 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1010110002021 its reverse (1202000110101), we get a palindrome (2212110112122).

The spelling of 1010110002021 in words is "one trillion, ten billion, one hundred ten million, two thousand, twenty-one".