1010020221021 has 16 divisors (see below), whose sum is σ = 1539724365824. Its totient is φ = 576912186864.

The previous prime is 1010020220999. The next prime is 1010020221061. The reversal of 1010020221021 is 1201220200101.

1010020221021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1010020221021 - 2⁷ = 1010020220893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010020220988 and 1010020221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010020221061) 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, 10041481 + ... + 10141566.

It is an arithmetic number, because the mean of its divisors is an integer number (96232772864).

Almost surely, 2^{1010020221021} is an apocalyptic number.

It is an amenable number.

1010020221021 is a deficient number, since it is larger than the sum of its proper divisors (529704144803).

1010020221021 is a wasteful number, since it uses less digits than its factorization.

1010020221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20185440.

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

Adding to 1010020221021 its reverse (1201220200101), we get a palindrome (2211240421122).

The spelling of 1010020221021 in words is "one trillion, ten billion, twenty million, two hundred twenty-one thousand, twenty-one".