1220002212212 has 48 divisors (see below), whose sum is σ = 2680096419840. Its totient is φ = 473802750432.

The previous prime is 1220002212211. The next prime is 1220002212239. The reversal of 1220002212212 is 2122122000221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220002212211) 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, 49840748 + ... + 49865219.

It is an arithmetic number, because the mean of its divisors is an integer number (55835342080).

Almost surely, 2^{1220002212212} is an apocalyptic number.

It is an amenable number.

1220002212212 is an abundant number, since it is smaller than the sum of its proper divisors (1460094207628).

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

1220002212212 is a wasteful number, since it uses less digits than its factorization.

1220002212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99706020 (or 99706018 counting only the distinct ones).

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

Adding to 1220002212212 its reverse (2122122000221), we get a palindrome (3342124212433).

The spelling of 1220002212212 in words is "one trillion, two hundred twenty billion, two million, two hundred twelve thousand, two hundred twelve".