1131110121222 has 24 divisors (see below), whose sum is σ = 2450758189464. Its totient is φ = 377033692704.

The previous prime is 1131110121199. The next prime is 1131110121259. The reversal of 1131110121222 is 2221210111311.

It is a happy number.

1131110121222 is a `hidden beast` number, since 1 + 1 + 311 + 10 + 121 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1131110121195 and 1131110121204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4097098 + ... + 4364450.

It is an arithmetic number, because the mean of its divisors is an integer number (102114924561).

Almost surely, 2^{1131110121222} is an apocalyptic number.

1131110121222 is an abundant number, since it is smaller than the sum of its proper divisors (1319648068242).

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

1131110121222 is a wasteful number, since it uses less digits than its factorization.

1131110121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502404 (or 502401 counting only the distinct ones).

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

Adding to 1131110121222 its reverse (2221210111311), we get a palindrome (3352320232533).

The spelling of 1131110121222 in words is "one trillion, one hundred thirty-one billion, one hundred ten million, one hundred twenty-one thousand, two hundred twenty-two".