1222102000 has 80 divisors (see below), whose sum is σ = 3377230272. Its totient is φ = 419001600.

The previous prime is 1222101997. The next prime is 1222102027. The reversal of 1222102000 is 2012221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29647 + ... + 57646.

Almost surely, 2^1222102000 is an apocalyptic number.

1222102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222102000 is an abundant number, since it is smaller than the sum of its proper divisors (2155128272).

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

1222102000 is an equidigital number, since it uses as much as digits as its factorization.

1222102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87323 (or 87307 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1222102000 is about 34958.5754858518. The cubic root of 1222102000 is about 1069.1430527669.

Adding to 1222102000 its reverse (2012221), we get a palindrome (1224114221).

The spelling of 1222102000 in words is "one billion, two hundred twenty-two million, one hundred two thousand".