1220012112212 has 24 divisors (see below), whose sum is σ = 2157332403072. Its totient is φ = 603662148000.

The previous prime is 1220012112169. The next prime is 1220012112311. The reversal of 1220012112212 is 2122112100221.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3681239 + ... + 3998942.

It is an arithmetic number, because the mean of its divisors is an integer number (89888850128).

Almost surely, 2^{1220012112212} is an apocalyptic number.

It is an amenable number.

1220012112212 is a deficient number, since it is larger than the sum of its proper divisors (937320290860).

1220012112212 is a wasteful number, since it uses less digits than its factorization.

1220012112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680599 (or 7680597 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1220012112212 its reverse (2122112100221), we get a palindrome (3342124212433).

The spelling of 1220012112212 in words is "one trillion, two hundred twenty billion, twelve million, one hundred twelve thousand, two hundred twelve".