1122212221012 has 24 divisors (see below), whose sum is σ = 1979806655232. Its totient is φ = 556568229600.

The previous prime is 1122212221003. The next prime is 1122212221051. The reversal of 1122212221012 is 2101222122211.

It is a super-3 number, since 3×1122212221012³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1583064 + ... + 2179567.

It is an arithmetic number, because the mean of its divisors is an integer number (82491943968).

Almost surely, 2^{1122212221012} is an apocalyptic number.

It is an amenable number.

1122212221012 is a deficient number, since it is larger than the sum of its proper divisors (857594434220).

1122212221012 is a wasteful number, since it uses less digits than its factorization.

1122212221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763239 (or 3763237 counting only the distinct ones).

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

Adding to 1122212221012 its reverse (2101222122211), we get a palindrome (3223434343223).

The spelling of 1122212221012 in words is "one trillion, one hundred twenty-two billion, two hundred twelve million, two hundred twenty-one thousand, twelve".