1201001222112 has 24 divisors (see below), whose sum is σ = 3152628208296. Its totient is φ = 400333740672.

The previous prime is 1201001222111. The next prime is 1201001222119. The reversal of 1201001222112 is 2112221001021.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1201001222091 and 1201001222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201001222111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6255214603 + ... + 6255214794.

It is an arithmetic number, because the mean of its divisors is an integer number (131359508679).

Almost surely, 2^{1201001222112} is an apocalyptic number.

1201001222112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201001222112 is an abundant number, since it is smaller than the sum of its proper divisors (1951626986184).

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

1201001222112 is a wasteful number, since it uses less digits than its factorization.

1201001222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12510429410 (or 12510429402 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1201001222112 its reverse (2112221001021), we get a palindrome (3313222223133).

The spelling of 1201001222112 in words is "one trillion, two hundred one billion, one million, two hundred twenty-two thousand, one hundred twelve".