1210221202112 has 56 divisors (see below), whose sum is σ = 2635063549776. Its totient is φ = 548024675328.

The previous prime is 1210221202051. The next prime is 1210221202121. The reversal of 1210221202112 is 2112021220121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13678478 + ... + 13766669.

It is an arithmetic number, because the mean of its divisors is an integer number (47054706246).

Almost surely, 2^{1210221202112} is an apocalyptic number.

It is an amenable number.

1210221202112 is an abundant number, since it is smaller than the sum of its proper divisors (1424842347664).

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

1210221202112 is a wasteful number, since it uses less digits than its factorization.

1210221202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27445225 (or 27445215 counting only the distinct ones).

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

Adding to 1210221202112 its reverse (2112021220121), we get a palindrome (3322242422233).

The spelling of 1210221202112 in words is "one trillion, two hundred ten billion, two hundred twenty-one million, two hundred two thousand, one hundred twelve".