1222201120212 has 48 divisors (see below), whose sum is σ = 3335441659200. Its totient is φ = 385958247840.

The previous prime is 1222201120211. The next prime is 1222201120219. The reversal of 1222201120212 is 2120211022221.

It is a happy number.

1222201120212 is a `hidden beast` number, since 122 + 220 + 112 + 0 + 212 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222201120211) 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 15 ways as a sum of consecutive naturals, for example, 297805239 + ... + 297809342.

It is an arithmetic number, because the mean of its divisors is an integer number (69488367900).

Almost surely, 2^{1222201120212} is an apocalyptic number.

1222201120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222201120212 is an abundant number, since it is smaller than the sum of its proper divisors (2113240538988).

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

1222201120212 is a wasteful number, since it uses less digits than its factorization.

1222201120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595614613 (or 595614605 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1222201120212 its reverse (2120211022221), we get a palindrome (3342412142433).

The spelling of 1222201120212 in words is "one trillion, two hundred twenty-two billion, two hundred one million, one hundred twenty thousand, two hundred twelve".