1220202212022 has 48 divisors (see below), whose sum is σ = 2659275345168. Its totient is φ = 404351723520.

The previous prime is 1220202211997. The next prime is 1220202212027. The reversal of 1220202212022 is 2202122020221.

1220202212022 is a `hidden beast` number, since 1 + 220 + 20 + 221 + 202 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1220202211986 and 1220202212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220202212027) 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 23 ways as a sum of consecutive naturals, for example, 5026413 + ... + 5263575.

It is an arithmetic number, because the mean of its divisors is an integer number (55401569691).

Almost surely, 2^{1220202212022} is an apocalyptic number.

1220202212022 is an abundant number, since it is smaller than the sum of its proper divisors (1439073133146).

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

1220202212022 is a wasteful number, since it uses less digits than its factorization.

1220202212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238845 (or 238842 counting only the distinct ones).

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

Adding to 1220202212022 its reverse (2202122020221), we get a palindrome (3422324232243).

The spelling of 1220202212022 in words is "one trillion, two hundred twenty billion, two hundred two million, two hundred twelve thousand, twenty-two".