1121221100223 has 96 divisors (see below), whose sum is σ = 1960387228800. Its totient is φ = 604087787520.

The previous prime is 1121221100221. The next prime is 1121221100231. The reversal of 1121221100223 is 3220011221211.

1121221100223 is a `hidden beast` number, since 1 + 121 + 221 + 100 + 223 = 666.

It is not a de Polignac number, because 1121221100223 - 2¹ = 1121221100221 is a prime.

It is a super-2 number, since 2×1121221100223² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121221100196 and 1121221100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121221100221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14200711 + ... + 14279447.

It is an arithmetic number, because the mean of its divisors is an integer number (20420700300).

Almost surely, 2^{1121221100223} is an apocalyptic number.

1121221100223 is a deficient number, since it is larger than the sum of its proper divisors (839166128577).

1121221100223 is a wasteful number, since it uses less digits than its factorization.

1121221100223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78977 (or 78974 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1121221100223 its reverse (3220011221211), we get a palindrome (4341232321434).

The spelling of 1121221100223 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred thousand, two hundred twenty-three".