20122220001222 has 12 divisors (see below), whose sum is σ = 43598143336020. Its totient is φ = 6707406667068.

The previous prime is 20122220001199. The next prime is 20122220001253. The reversal of 20122220001222 is 22210002222102.

20122220001222 is a `hidden beast` number, since 20 + 1 + 222 + 200 + 0 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1117901111179 = 20122220001222 / (2 + 0 + 1 + 2 + 2 + 2 + 2 + 0 + 0 + 0 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 20122220001195 and 20122220001204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558950555572 + ... + 558950555607.

It is an arithmetic number, because the mean of its divisors is an integer number (3633178611335).

Almost surely, 2^{20122220001222} is an apocalyptic number.

20122220001222 is an abundant number, since it is smaller than the sum of its proper divisors (23475923334798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20122220001222 is a wasteful number, since it uses less digits than its factorization.

20122220001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117901111187 (or 1117901111184 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20122220001222 its reverse (22210002222102), we get a palindrome (42332222223324).

The spelling of 20122220001222 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty million, one thousand, two hundred twenty-two".