1220112122212 has 6 divisors (see below), whose sum is σ = 2135196213878. Its totient is φ = 610056061104.

The previous prime is 1220112122183. The next prime is 1220112122227. The reversal of 1220112122212 is 2122212110221.

It can be written as a sum of positive squares in only one way, i.e., 1136987159616 + 83124962596 = 1066296^2 + 288314^2 .

It is a super-3 number, since 3×1220112122212³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220112122212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152514015273 + ... + 152514015280.

Almost surely, 2^{1220112122212} is an apocalyptic number.

It is an amenable number.

1220112122212 is a deficient number, since it is larger than the sum of its proper divisors (915084091666).

1220112122212 is a wasteful number, since it uses less digits than its factorization.

1220112122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305028030557 (or 305028030555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1220112122212 its reverse (2122212110221), we get a palindrome (3342324232433).

The spelling of 1220112122212 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twelve".