1100222122212 has 36 divisors (see below), whose sum is σ = 2902035165120. Its totient is φ = 350795458992.

The previous prime is 1100222122211. The next prime is 1100222122229. The reversal of 1100222122212 is 2122212220011.

It is a happy number.

1100222122212 is a `hidden beast` number, since 110 + 0 + 222 + 122 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (1100222122211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664384512 + ... + 664386167.

It is an arithmetic number, because the mean of its divisors is an integer number (80612087920).

Almost surely, 2^{1100222122212} is an apocalyptic number.

1100222122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1100222122212 is an abundant number, since it is smaller than the sum of its proper divisors (1801813042908).

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

1100222122212 is a wasteful number, since it uses less digits than its factorization.

1100222122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328770712 (or 1328770707 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1100222122212 its reverse (2122212220011), we get a palindrome (3222434342223).

The spelling of 1100222122212 in words is "one trillion, one hundred billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twelve".