1201101212112 has 40 divisors (see below), whose sum is σ = 3106670847840. Its totient is φ = 399873386880.

The previous prime is 1201101212089. The next prime is 1201101212167. The reversal of 1201101212112 is 2112121011021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1201101212091 and 1201101212100.

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, 15388287 + ... + 15466142.

It is an arithmetic number, because the mean of its divisors is an integer number (77666771196).

Almost surely, 2^{1201101212112} is an apocalyptic number.

1201101212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201101212112 is an abundant number, since it is smaller than the sum of its proper divisors (1905569635728).

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

1201101212112 is a wasteful number, since it uses less digits than its factorization.

1201101212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30855251 (or 30855245 counting only the distinct ones).

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

Adding to 1201101212112 its reverse (2112121011021), we get a palindrome (3313222223133).

The spelling of 1201101212112 in words is "one trillion, two hundred one billion, one hundred one million, two hundred twelve thousand, one hundred twelve".