1222220221201 has 12 divisors (see below), whose sum is σ = 1446650338432. Its totient is φ = 1011492591984.

The previous prime is 1222220221147. The next prime is 1222220221247. The reversal of 1222220221201 is 1021220222221.

It is not a de Polignac number, because 1222220221201 - 2¹³ = 1222220213009 is a prime.

It is a super-2 number, since 2×1222220221201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222220224201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103800825 + ... + 103812598.

Almost surely, 2^{1222220221201} is an apocalyptic number.

It is an amenable number.

1222220221201 is a deficient number, since it is larger than the sum of its proper divisors (224430117231).

1222220221201 is an equidigital number, since it uses as much as digits as its factorization.

1222220221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207613488 (or 207613459 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1222220221201 its reverse (1021220222221), we get a palindrome (2243440443422).

The spelling of 1222220221201 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, two hundred one".