1121101122222 has 16 divisors (see below), whose sum is σ = 2491335827280. Its totient is φ = 373700374056.

The previous prime is 1121101122217. The next prime is 1121101122233. The reversal of 1121101122222 is 2222211011211.

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 = 1121101122195 and 1121101122204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10380565893 + ... + 10380566000.

It is an arithmetic number, because the mean of its divisors is an integer number (155708489205).

Almost surely, 2^{1121101122222} is an apocalyptic number.

1121101122222 is an abundant number, since it is smaller than the sum of its proper divisors (1370234705058).

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

1121101122222 is a wasteful number, since it uses less digits than its factorization.

1121101122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20761131904 (or 20761131898 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1121101122222 its reverse (2222211011211), we get a palindrome (3343312133433).

The spelling of 1121101122222 in words is "one trillion, one hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, two hundred twenty-two".