1111022320212 has 144 divisors (see below), whose sum is σ = 3296978036352. Its totient is φ = 308798334720.

The previous prime is 1111022320157. The next prime is 1111022320327. The reversal of 1111022320212 is 2120232201111.

1111022320212 is a `hidden beast` number, since 1 + 1 + 110 + 22 + 320 + 212 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86921262 + ... + 86934042.

It is an arithmetic number, because the mean of its divisors is an integer number (22895680808).

Almost surely, 2^{1111022320212} is an apocalyptic number.

1111022320212 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 1111022320212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1648489018176).

1111022320212 is an abundant number, since it is smaller than the sum of its proper divisors (2185955716140).

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

1111022320212 is a wasteful number, since it uses less digits than its factorization.

1111022320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22158 (or 22153 counting only the distinct ones).

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

Adding to 1111022320212 its reverse (2120232201111), we get a palindrome (3231254521323).

The spelling of 1111022320212 in words is "one trillion, one hundred eleven billion, twenty-two million, three hundred twenty thousand, two hundred twelve".