1212202120112 has 40 divisors (see below), whose sum is σ = 2377762337280. Its totient is φ = 598621570560.

The previous prime is 1212202120091. The next prime is 1212202120121. The reversal of 1212202120112 is 2110212022121.

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, 564464 + ... + 1656207.

It is an arithmetic number, because the mean of its divisors is an integer number (59444058432).

Almost surely, 2^{1212202120112} is an apocalyptic number.

It is an amenable number.

1212202120112 is a deficient number, since it is larger than the sum of its proper divisors (1165560217168).

1212202120112 is a wasteful number, since it uses less digits than its factorization.

1212202120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221101 (or 2221095 counting only the distinct ones).

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

Adding to 1212202120112 its reverse (2110212022121), we get a palindrome (3322414142233).

The spelling of 1212202120112 in words is "one trillion, two hundred twelve billion, two hundred two million, one hundred twenty thousand, one hundred twelve".