20221021013 has 8 divisors (see below), whose sum is σ = 20290740288. Its totient is φ = 20151334944.

The previous prime is 20221021001. The next prime is 20221021027. The reversal of 20221021013 is 31012012202.

It is a happy number.

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 20221021013 - 2⁶ = 20221020949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221021043) 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, 2132120 + ... + 2141582.

It is an arithmetic number, because the mean of its divisors is an integer number (2536342536).

Almost surely, 2^20221021013 is an apocalyptic number.

It is an amenable number.

20221021013 is a deficient number, since it is larger than the sum of its proper divisors (69719275).

20221021013 is an equidigital number, since it uses as much as digits as its factorization.

20221021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16603.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20221021013 its reverse (31012012202), we get a palindrome (51233033215).

The spelling of 20221021013 in words is "twenty billion, two hundred twenty-one million, twenty-one thousand, thirteen".