1220112120212 has 12 divisors (see below), whose sum is σ = 2147124682080. Its totient is φ = 606647925336.

The previous prime is 1220112120211. The next prime is 1220112120259. The reversal of 1220112120212 is 2120212110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220112120211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852032888 + ... + 852034319.

It is an arithmetic number, because the mean of its divisors is an integer number (178927056840).

Almost surely, 2^{1220112120212} is an apocalyptic number.

It is an amenable number.

1220112120212 is a deficient number, since it is larger than the sum of its proper divisors (927012561868).

1220112120212 is a wasteful number, since it uses less digits than its factorization.

1220112120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704067390 (or 1704067388 counting only the distinct ones).

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

Adding to 1220112120212 its reverse (2120212110221), we get a palindrome (3340324230433).

Subtracting 1220112120212 from its reverse (2120212110221), we obtain a palindrome (900099990009).

The spelling of 1220112120212 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred twenty thousand, two hundred twelve".