1212202222112 has 24 divisors (see below), whose sum is σ = 2727455000256. Its totient is φ = 519515237952.

The previous prime is 1212202222081. The next prime is 1212202222157. The reversal of 1212202222112 is 2112222022121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2705808308 + ... + 2705808755.

It is an arithmetic number, because the mean of its divisors is an integer number (113643958344).

Almost surely, 2^{1212202222112} is an apocalyptic number.

It is an amenable number.

1212202222112 is an abundant number, since it is smaller than the sum of its proper divisors (1515252778144).

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

1212202222112 is an equidigital number, since it uses as much as digits as its factorization.

1212202222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411617080 (or 5411617072 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1212202222112 its reverse (2112222022121), we get a palindrome (3324424244233).

The spelling of 1212202222112 in words is "one trillion, two hundred twelve billion, two hundred two million, two hundred twenty-two thousand, one hundred twelve".