1111122321102 has 12 divisors (see below), whose sum is σ = 2407431695760. Its totient is φ = 370374107028.

The previous prime is 1111122321073. The next prime is 1111122321131. The reversal of 1111122321102 is 2011232211111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1111122321073) and next prime (1111122321131).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 61729017839 = 1111122321102 / (1 + 1 + 1 + 1 + 1 + 2 + 2 + 3 + 2 + 1 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30864508902 + ... + 30864508937.

It is an arithmetic number, because the mean of its divisors is an integer number (200619307980).

Almost surely, 2^{1111122321102} is an apocalyptic number.

1111122321102 is an abundant number, since it is smaller than the sum of its proper divisors (1296309374658).

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

1111122321102 is a wasteful number, since it uses less digits than its factorization.

1111122321102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61729017847 (or 61729017844 counting only the distinct ones).

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

Adding to 1111122321102 its reverse (2011232211111), we get a palindrome (3122354532213).

The spelling of 1111122321102 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, three hundred twenty-one thousand, one hundred two".