1122122110221 has 36 divisors (see below), whose sum is σ = 1887666081600. Its totient is φ = 640465954128.

The previous prime is 1122122110183. The next prime is 1122122110223. The reversal of 1122122110221 is 1220112212211.

1122122110221 is a `hidden beast` number, since 1 + 1 + 221 + 221 + 1 + 0 + 221 = 666.

It is not a de Polignac number, because 1122122110221 - 2⁹ = 1122122109709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122122110194 and 1122122110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122122110223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1102261 + ... + 1859898.

Almost surely, 2^{1122122110221} is an apocalyptic number.

It is an amenable number.

1122122110221 is a deficient number, since it is larger than the sum of its proper divisors (765543971379).

1122122110221 is a wasteful number, since it uses less digits than its factorization.

1122122110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963038 (or 2963028 counting only the distinct ones).

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

Adding to 1122122110221 its reverse (1220112212211), we get a palindrome (2342234322432).

The spelling of 1122122110221 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred ten thousand, two hundred twenty-one".