1123020222101 has 16 divisors (see below), whose sum is σ = 1191359376000. Its totient is φ = 1058566307040.

The previous prime is 1123020222083. The next prime is 1123020222161. The reversal of 1123020222101 is 1012220203211.

It is not a de Polignac number, because 1123020222101 - 2³⁴ = 1105840352917 is a prime.

It is a super-2 number, since 2×1123020222101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123020222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123020222161) 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, 953561 + ... + 1776321.

It is an arithmetic number, because the mean of its divisors is an integer number (74459961000).

Almost surely, 2^{1123020222101} is an apocalyptic number.

It is an amenable number.

1123020222101 is a deficient number, since it is larger than the sum of its proper divisors (68339153899).

1123020222101 is an frugal number, since it uses more digits than its factorization.

1123020222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823017 (or 822979 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1123020222101 its reverse (1012220203211), we get a palindrome (2135240425312).

The spelling of 1123020222101 in words is "one trillion, one hundred twenty-three billion, twenty million, two hundred twenty-two thousand, one hundred one".