1121222202111 has 108 divisors (see below), whose sum is σ = 1919294473096. Its totient is φ = 629998871040.

The previous prime is 1121222202103. The next prime is 1121222202143. The reversal of 1121222202111 is 1112022221211.

1121222202111 is a `hidden beast` number, since 112 + 122 + 220 + 211 + 1 = 666.

It is not a de Polignac number, because 1121222202111 - 2³ = 1121222202103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121222202101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 21059721 + ... + 21112893.

Almost surely, 2^{1121222202111} is an apocalyptic number.

1121222202111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1121222202111 is a deficient number, since it is larger than the sum of its proper divisors (798072270985).

1121222202111 is a wasteful number, since it uses less digits than its factorization.

1121222202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53302 (or 53271 counting only the distinct ones).

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

Adding to 1121222202111 its reverse (1112022221211), we get a palindrome (2233244423322).

The spelling of 1121222202111 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred two thousand, one hundred eleven".