20122122220222 has 8 divisors (see below), whose sum is σ = 32927109087672. Its totient is φ = 9146419191000.

The previous prime is 20122122220217. The next prime is 20122122220223. The reversal of 20122122220222 is 22202222122102.

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: 914641919101 = 20122122220222 / (2 + 0 + 1 + 2 + 2 + 1 + 2 + 2 + 2 + 2 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 20122122220193 and 20122122220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122122220223) 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, 457320959529 + ... + 457320959572.

It is an arithmetic number, because the mean of its divisors is an integer number (4115888635959).

Almost surely, 2^{20122122220222} is an apocalyptic number.

20122122220222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20122122220222 is a deficient number, since it is larger than the sum of its proper divisors (12804986867450).

20122122220222 is a wasteful number, since it uses less digits than its factorization.

20122122220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914641919114.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20122122220222 its reverse (22202222122102), we get a palindrome (42324344342324).

The spelling of 20122122220222 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".