1021020101021 has 8 divisors (see below), whose sum is σ = 1053971218944. Its totient is φ = 988069919760.

The previous prime is 1021020100993. The next prime is 1021020101041. The reversal of 1021020101021 is 1201010201201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021020101021 - 2⁶ = 1021020100957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021020100993 and 1021020101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021020101041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2481056 + ... + 2863158.

It is an arithmetic number, because the mean of its divisors is an integer number (131746402368).

Almost surely, 2^{1021020101021} is an apocalyptic number.

It is an amenable number.

1021020101021 is a deficient number, since it is larger than the sum of its proper divisors (32951117923).

1021020101021 is an equidigital number, since it uses as much as digits as its factorization.

1021020101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468331.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021020101021 its reverse (1201010201201), we get a palindrome (2222030302222).

The spelling of 1021020101021 in words is "one trillion, twenty-one billion, twenty million, one hundred one thousand, twenty-one".