1122222121101 has 16 divisors (see below), whose sum is σ = 1682582032320. Its totient is φ = 739134246960.

The previous prime is 1122222121079. The next prime is 1122222121171. The reversal of 1122222121101 is 1011212222211.

1122222121101 is a `hidden beast` number, since 11 + 222 + 221 + 211 + 0 + 1 = 666.

It is not a de Polignac number, because 1122222121101 - 2⁶ = 1122222121037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122222121171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250381990 + ... + 250386471.

It is an arithmetic number, because the mean of its divisors is an integer number (105161377020).

Almost surely, 2^{1122222121101} is an apocalyptic number.

It is an amenable number.

1122222121101 is a deficient number, since it is larger than the sum of its proper divisors (560359911219).

1122222121101 is an equidigital number, since it uses as much as digits as its factorization.

1122222121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500768553 (or 500768547 counting only the distinct ones).

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

Adding to 1122222121101 its reverse (1011212222211), we get a palindrome (2133434343312).

The spelling of 1122222121101 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred one".