1133222020 has 108 divisors (see below), whose sum is σ = 2822080716. Its totient is φ = 381091200.

The previous prime is 1133222003. The next prime is 1133222021. The reversal of 1133222020 is 202223311.

It can be written as a sum of positive squares in 2 ways, for example, as 810085444 + 323136576 = 28462^2 + 17976^2 .

It is a super-2 number, since 2×1133222020² = 2568384293225760800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1133221985 and 1133222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133222021) 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, 10590807 + ... + 10590913.

It is an arithmetic number, because the mean of its divisors is an integer number (26130377).

Almost surely, 2^1133222020 is an apocalyptic number.

1133222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1133222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411040358).

1133222020 is an abundant number, since it is smaller than the sum of its proper divisors (1688858696).

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

1133222020 is a wasteful number, since it uses less digits than its factorization.

1133222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1133222020 is about 33663.3631712579. The cubic root of 1133222020 is about 1042.5694663171.

Adding to 1133222020 its reverse (202223311), we get a palindrome (1335445331).

The spelling of 1133222020 in words is "one billion, one hundred thirty-three million, two hundred twenty-two thousand, twenty".