20221001413 has 4 divisors (see below), whose sum is σ = 20224388268. Its totient is φ = 20217614560.

The previous prime is 20221001401. The next prime is 20221001429. The reversal of 20221001413 is 31410012202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31410012202 = 2 ⋅15705006101.

It can be written as a sum of positive squares in 2 ways, for example, as 10047656644 + 10173344769 = 100238^2 + 100863^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20221001413 is a prime.

It is a super-4 number, since 4×20221001413⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221001443) 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, 1684456 + ... + 1696417.

It is an arithmetic number, because the mean of its divisors is an integer number (5056097067).

Almost surely, 2^20221001413 is an apocalyptic number.

It is an amenable number.

20221001413 is a deficient number, since it is larger than the sum of its proper divisors (3386855).

20221001413 is an equidigital number, since it uses as much as digits as its factorization.

20221001413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386854.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20221001413 its reverse (31410012202), we get a palindrome (51631013615).

The spelling of 20221001413 in words is "twenty billion, two hundred twenty-one million, one thousand, four hundred thirteen".