1201211210112 has 64 divisors (see below), whose sum is σ = 3211040478000. Its totient is φ = 397853374464.

The previous prime is 1201211210107. The next prime is 1201211210149. The reversal of 1201211210112 is 2110121121021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1201211210112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201211210091 and 1201211210100.

It is a congruent number.

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, 9901987 + ... + 10022562.

Almost surely, 2^{1201211210112} is an apocalyptic number.

1201211210112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201211210112 is an abundant number, since it is smaller than the sum of its proper divisors (2009829267888).

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

1201211210112 is a wasteful number, since it uses less digits than its factorization.

1201211210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19924723 (or 19924711 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1201211210112 its reverse (2110121121021), we get a palindrome (3311332331133).

The spelling of 1201211210112 in words is "one trillion, two hundred one billion, two hundred eleven million, two hundred ten thousand, one hundred twelve".