20122213221321 has 8 divisors (see below), whose sum is σ = 26994216510240. Its totient is φ = 13332509373312.

The previous prime is 20122213221317. The next prime is 20122213221343. The reversal of 20122213221321 is 12312231222102.

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

It is not a de Polignac number, because 20122213221321 - 2² = 20122213221317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20122213221291 and 20122213221300.

It is not an unprimeable number, because it can be changed into a prime (20122213221311) 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, 20574859656 + ... + 20574860633.

It is an arithmetic number, because the mean of its divisors is an integer number (3374277063780).

Almost surely, 2^{20122213221321} is an apocalyptic number.

It is an amenable number.

20122213221321 is a deficient number, since it is larger than the sum of its proper divisors (6872003288919).

20122213221321 is a wasteful number, since it uses less digits than its factorization.

20122213221321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41149720455.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 20122213221321 its reverse (12312231222102), we get a palindrome (32434444443423).

The spelling of 20122213221321 in words is "twenty trillion, one hundred twenty-two billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred twenty-one".