1101122220222 has 48 divisors (see below), whose sum is σ = 2452156621200. Its totient is φ = 356842094976.

The previous prime is 1101122220217. The next prime is 1101122220229. The reversal of 1101122220222 is 2220222211011.

It is a happy number.

1101122220222 is a `hidden beast` number, since 1 + 101 + 122 + 220 + 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 = 1101122220195 and 1101122220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101122220229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210154 + ... + 1498802.

It is an arithmetic number, because the mean of its divisors is an integer number (51086596275).

Almost surely, 2^{1101122220222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101122220222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1226078310600).

1101122220222 is an abundant number, since it is smaller than the sum of its proper divisors (1351034400978).

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

1101122220222 is a wasteful number, since it uses less digits than its factorization.

1101122220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289977 (or 1289974 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1101122220222 its reverse (2220222211011), we get a palindrome (3321344431233).

The spelling of 1101122220222 in words is "one trillion, one hundred one billion, one hundred twenty-two million, two hundred twenty thousand, two hundred twenty-two".