1101001201212 has 192 divisors, whose sum is σ = 2978783797248. Its totient is φ = 313236000000.

The previous prime is 1101001201199. The next prime is 1101001201213. The reversal of 1101001201212 is 2121021001011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101001201213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48919962 + ... + 48942462.

It is an arithmetic number, because the mean of its divisors is an integer number (15514498944).

Almost surely, 2^{1101001201212} is an apocalyptic number.

1101001201212 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 1101001201212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1489391898624).

1101001201212 is an abundant number, since it is smaller than the sum of its proper divisors (1877782596036).

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

1101001201212 is a wasteful number, since it uses less digits than its factorization.

1101001201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22840 (or 22838 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1101001201212 its reverse (2121021001011), we get a palindrome (3222022202223).

The spelling of 1101001201212 in words is "one trillion, one hundred one billion, one million, two hundred one thousand, two hundred twelve".