1010020010221 has 16 divisors (see below), whose sum is σ = 1047711392640. Its totient is φ = 973048507200.

The previous prime is 1010020010191. The next prime is 1010020010257. The reversal of 1010020010221 is 1220100200101.

It is a cyclic number.

It is not a de Polignac number, because 1010020010221 - 2²⁵ = 1009986455789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010020010198 and 1010020010207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010020010281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700075 + ... + 1584343.

It is an arithmetic number, because the mean of its divisors is an integer number (65481962040).

Almost surely, 2^{1010020010221} is an apocalyptic number.

It is an amenable number.

1010020010221 is a deficient number, since it is larger than the sum of its proper divisors (37691382419).

1010020010221 is a wasteful number, since it uses less digits than its factorization.

1010020010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884676.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1010020010221 its reverse (1220100200101), we get a palindrome (2230120210322).

The spelling of 1010020010221 in words is "one trillion, ten billion, twenty million, ten thousand, two hundred twenty-one".