1020223130021 has 4 divisors (see below), whose sum is σ = 1025058310944. Its totient is φ = 1015387949100.

The previous prime is 1020223130011. The next prime is 1020223130063. The reversal of 1020223130021 is 1200313220201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1020223130021 - 2¹⁸ = 1020222867877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020223130011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417590145 + ... + 2417590566.

It is an arithmetic number, because the mean of its divisors is an integer number (256264577736).

Almost surely, 2^{1020223130021} is an apocalyptic number.

It is an amenable number.

1020223130021 is a deficient number, since it is larger than the sum of its proper divisors (4835180923).

1020223130021 is an equidigital number, since it uses as much as digits as its factorization.

1020223130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4835180922.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1020223130021 its reverse (1200313220201), we get a palindrome (2220536350222).

The spelling of 1020223130021 in words is "one trillion, twenty billion, two hundred twenty-three million, one hundred thirty thousand, twenty-one".