1111022111232 has 480 divisors, whose sum is σ = 3719145995136. Its totient is φ = 315941683200.

The previous prime is 1111022111203. The next prime is 1111022111281. The reversal of 1111022111232 is 2321112201111.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61779682 + ... + 61797662.

Almost surely, 2^{1111022111232} is an apocalyptic number.

1111022111232 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 1111022111232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1859572997568).

1111022111232 is an abundant number, since it is smaller than the sum of its proper divisors (2608123883904).

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

1111022111232 is a wasteful number, since it uses less digits than its factorization.

1111022111232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18092 (or 18073 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1111022111232 its reverse (2321112201111), we get a palindrome (3432134312343).

The spelling of 1111022111232 in words is "one trillion, one hundred eleven billion, twenty-two million, one hundred eleven thousand, two hundred thirty-two".