20221221319 has 8 divisors (see below), whose sum is σ = 23057682480. Its totient is φ = 17567757696.

The previous prime is 20221221301. The next prime is 20221221329. The reversal of 20221221319 is 91312212202.

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 20221221319 - 2¹³ = 20221213127 is a prime.

It is a super-2 number, since 2×20221221319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20221221293 and 20221221302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221221329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45749149 + ... + 45749590.

It is an arithmetic number, because the mean of its divisors is an integer number (2882210310).

Almost surely, 2^20221221319 is an apocalyptic number.

20221221319 is a deficient number, since it is larger than the sum of its proper divisors (2836461161).

20221221319 is a wasteful number, since it uses less digits than its factorization.

20221221319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91498769.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 20221221319 in words is "twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, three hundred nineteen".