221020320302122 has 8 divisors (see below), whose sum is σ = 361669615039872. Its totient is φ = 100463781955500.

The previous prime is 221020320302101. The next prime is 221020320302209. The reversal of 221020320302122 is 221203023020122.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 10046378195551 = 221020320302122 / (2 + 2 + 1 + 0 + 2 + 0 + 3 + 2 + 0 + 3 + 0 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 221020320302093 and 221020320302102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5023189097754 + ... + 5023189097797.

It is an arithmetic number, because the mean of its divisors is an integer number (45208701879984).

Almost surely, 2^{221020320302122} is an apocalyptic number.

221020320302122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221020320302122 is a deficient number, since it is larger than the sum of its proper divisors (140649294737750).

221020320302122 is a wasteful number, since it uses less digits than its factorization.

221020320302122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10046378195564.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221020320302122 its reverse (221203023020122), we get a palindrome (442223343322244).

The spelling of 221020320302122 in words is "two hundred twenty-one trillion, twenty billion, three hundred twenty million, three hundred two thousand, one hundred twenty-two".