1220201201222 has 16 divisors (see below), whose sum is σ = 1865341634832. Its totient is φ = 598426901280.

The previous prime is 1220201201221. The next prime is 1220201201231. The reversal of 1220201201222 is 2221021020221.

It is a happy number.

It is a super-2 number, since 2×1220201201222² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220201201222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220201201221) 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 7 ways as a sum of consecutive naturals, for example, 1168133 + ... + 1950624.

It is an arithmetic number, because the mean of its divisors is an integer number (116583852177).

Almost surely, 2^{1220201201222} is an apocalyptic number.

1220201201222 is a deficient number, since it is larger than the sum of its proper divisors (645140433610).

1220201201222 is a wasteful number, since it uses less digits than its factorization.

1220201201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122503.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220201201222 its reverse (2221021020221), we get a palindrome (3441222221443).

The spelling of 1220201201222 in words is "one trillion, two hundred twenty billion, two hundred one million, two hundred one thousand, two hundred twenty-two".