1201212022112 has 24 divisors (see below), whose sum is σ = 2364928196400. Its totient is φ = 600595337344.

The previous prime is 1201212022097. The next prime is 1201212022139. The reversal of 1201212022112 is 2112202121021.

It is a congruent number.

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, 1682714 + ... + 2287782.

It is an arithmetic number, because the mean of its divisors is an integer number (98538674850).

Almost surely, 2^{1201212022112} is an apocalyptic number.

It is an amenable number.

1201212022112 is a deficient number, since it is larger than the sum of its proper divisors (1163716174288).

1201212022112 is an equidigital number, since it uses as much as digits as its factorization.

1201212022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667118 (or 667110 counting only the distinct ones).

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

Adding to 1201212022112 its reverse (2112202121021), we get a palindrome (3313414143133).

The spelling of 1201212022112 in words is "one trillion, two hundred one billion, two hundred twelve million, twenty-two thousand, one hundred twelve".