1101201121212 has 96 divisors (see below), whose sum is σ = 2780903193600. Its totient is φ = 338013388800.

The previous prime is 1101201121159. The next prime is 1101201121219. The reversal of 1101201121212 is 2121211021011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1101201121191 and 1101201121200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101201121219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2315964 + ... + 2750652.

It is an arithmetic number, because the mean of its divisors is an integer number (28967741600).

Almost surely, 2^{1101201121212} is an apocalyptic number.

1101201121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101201121212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1390451596800).

1101201121212 is an abundant number, since it is smaller than the sum of its proper divisors (1679702072388).

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

1101201121212 is a wasteful number, since it uses less digits than its factorization.

1101201121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435027 (or 435025 counting only the distinct ones).

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

Adding to 1101201121212 its reverse (2121211021011), we get a palindrome (3222412142223).

The spelling of 1101201121212 in words is "one trillion, one hundred one billion, two hundred one million, one hundred twenty-one thousand, two hundred twelve".