10023220021 has 8 divisors (see below), whose sum is σ = 10391399424. Its totient is φ = 9660931680.

The previous prime is 10023219989. The next prime is 10023220073. The reversal of 10023220021 is 12002232001.

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

It is not a de Polignac number, because 10023220021 - 2⁵ = 10023219989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10023219983 and 10023220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10023220121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1469301 + ... + 1476106.

It is an arithmetic number, because the mean of its divisors is an integer number (1298924928).

Almost surely, 2^10023220021 is an apocalyptic number.

It is an amenable number.

10023220021 is a deficient number, since it is larger than the sum of its proper divisors (368179403).

10023220021 is an equidigital number, since it uses as much as digits as its factorization.

10023220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945531.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10023220021 its reverse (12002232001), we get a palindrome (22025452022).

The spelling of 10023220021 in words is "ten billion, twenty-three million, two hundred twenty thousand, twenty-one".