1102120222221 has 24 divisors (see below), whose sum is σ = 1635796032000. Its totient is φ = 714530738016.

The previous prime is 1102120222193. The next prime is 1102120222261. The reversal of 1102120222221 is 1222220212011.

It is a happy number.

1102120222221 is a `hidden beast` number, since 1 + 10 + 212 + 0 + 222 + 221 = 666.

It is not a de Polignac number, because 1102120222221 - 2⁶ = 1102120222157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1102120222194 and 1102120222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102120222261) 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, 162165 + ... + 1493498.

It is an arithmetic number, because the mean of its divisors is an integer number (68158168000).

Almost surely, 2^{1102120222221} is an apocalyptic number.

It is an amenable number.

1102120222221 is a deficient number, since it is larger than the sum of its proper divisors (533675809779).

1102120222221 is a wasteful number, since it uses less digits than its factorization.

1102120222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657705 (or 1657702 counting only the distinct ones).

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

Adding to 1102120222221 its reverse (1222220212011), we get a palindrome (2324340434232).

The spelling of 1102120222221 in words is "one trillion, one hundred two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty-one".