1100131222212 has 216 divisors, whose sum is σ = 3145811760000. Its totient is φ = 323689322880.

The previous prime is 1100131222193. The next prime is 1100131222273. The reversal of 1100131222212 is 2122221310011.

1100131222212 is a `hidden beast` number, since 1 + 100 + 131 + 222 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 80417989 + ... + 80431667.

Almost surely, 2^{1100131222212} is an apocalyptic number.

1100131222212 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 1100131222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572905880000).

1100131222212 is an abundant number, since it is smaller than the sum of its proper divisors (2045680537788).

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

1100131222212 is a wasteful number, since it uses less digits than its factorization.

1100131222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14247 (or 14231 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1100131222212 its reverse (2122221310011), we get a palindrome (3222352532223).

It can be divided in two parts, 11001 and 31222212, that added together give a palindrome (31233213).

The spelling of 1100131222212 in words is "one trillion, one hundred billion, one hundred thirty-one million, two hundred twenty-two thousand, two hundred twelve".