12202222021122 has 64 divisors (see below), whose sum is σ = 29394404075520. Its totient is φ = 3298843718784.

The previous prime is 12202222021091. The next prime is 12202222021177. The reversal of 12202222021122 is 22112022220221.

It is a super-2 number, since 2×12202222021122² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8633043 + ... + 9946550.

It is an arithmetic number, because the mean of its divisors is an integer number (459287563680).

Almost surely, 2^{12202222021122} is an apocalyptic number.

12202222021122 is an abundant number, since it is smaller than the sum of its proper divisors (17192182054398).

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

12202222021122 is a wasteful number, since it uses less digits than its factorization.

12202222021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18580447.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12202222021122 its reverse (22112022220221), we get a palindrome (34314244241343).

The spelling of 12202222021122 in words is "twelve trillion, two hundred two billion, two hundred twenty-two million, twenty-one thousand, one hundred twenty-two".