1226042100 has 108 divisors (see below), whose sum is σ = 3872668800. Its totient is φ = 324417600.

The previous prime is 1226042099. The next prime is 1226042107. The reversal of 1226042100 is 12406221.

1226042100 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226042107) 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, 112701 + ... + 123099.

Almost surely, 2^1226042100 is an apocalyptic number.

1226042100 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 1226042100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936334400).

1226042100 is an abundant number, since it is smaller than the sum of its proper divisors (2646626700).

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

1226042100 is a wasteful number, since it uses less digits than its factorization.

1226042100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550 (or 10540 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1226042100 is about 35014.8839781028. The cubic root of 1226042100 is about 1070.2908051688.

Adding to 1226042100 its reverse (12406221), we get a palindrome (1238448321).

The spelling of 1226042100 in words is "one billion, two hundred twenty-six million, forty-two thousand, one hundred".