1123021200220 has 24 divisors (see below), whose sum is σ = 2358369795600. Its totient is φ = 449203665792.

The previous prime is 1123021200179. The next prime is 1123021200233. The reversal of 1123021200220 is 220021203211.

It is a happy number.

It is a super-2 number, since 2×1123021200220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123021200194 and 1123021200203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2066016 + ... + 2552344.

It is an arithmetic number, because the mean of its divisors is an integer number (98265408150).

Almost surely, 2^{1123021200220} is an apocalyptic number.

1123021200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123021200220 is an abundant number, since it is smaller than the sum of its proper divisors (1235348595380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123021200220 is a wasteful number, since it uses less digits than its factorization.

1123021200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601797 (or 601795 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1123021200220 its reverse (220021203211), we get a palindrome (1343042403431).

The spelling of 1123021200220 in words is "one trillion, one hundred twenty-three billion, twenty-one million, two hundred thousand, two hundred twenty".