1222683900 has 144 divisors (see below), whose sum is σ = 3622268160. Its totient is φ = 318348800.

The previous prime is 1222683863. The next prime is 1222683937. The reversal of 1222683900 is 93862221.

It is a happy number.

1222683900 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1222683863) and next prime (1222683937).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2917891 + ... + 2918309.

It is an arithmetic number, because the mean of its divisors is an integer number (25154640).

Almost surely, 2^1222683900 is an apocalyptic number.

1222683900 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 1222683900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811134080).

1222683900 is an abundant number, since it is smaller than the sum of its proper divisors (2399584260).

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

1222683900 is a wasteful number, since it uses less digits than its factorization.

1222683900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1222683900 is about 34966.8972029261. The cubic root of 1222683900 is about 1069.3127155353.

The spelling of 1222683900 in words is "one billion, two hundred twenty-two million, six hundred eighty-three thousand, nine hundred".