1226831100 has 108 divisors (see below), whose sum is σ = 3901776312. Its totient is φ = 297404800.

The previous prime is 1226831041. The next prime is 1226831101. The reversal of 1226831100 is 11386221.

It is a super-2 number, since 2×1226831100² = 3010229095854420000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226831101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19402 + ... + 53198.

Almost surely, 2^1226831100 is an apocalyptic number.

1226831100 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 1226831100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1950888156).

1226831100 is an abundant number, since it is smaller than the sum of its proper divisors (2674945212).

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

1226831100 is a wasteful number, since it uses less digits than its factorization.

1226831100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33836 (or 33818 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1226831100 is about 35026.1488034297. The cubic root of 1226831100 is about 1070.5203455094.

The spelling of 1226831100 in words is "one billion, two hundred twenty-six million, eight hundred thirty-one thousand, one hundred".