Search a number
-
+
1212232000000 = 2956721647
BaseRepresentation
bin10001101000111110101…
…010000110001000000000
311021212222112101002111111
4101220332222012020000
5124330122343000000
62324520334453104
7153403144662430
oct21507652061000
94255875332444
101212232000000
114281173a77aa
12176b32064194
138a40b82bc28
144295ac982c0
15217ed9d6cba
hex11a3ea86200

1212232000000 has 280 divisors, whose sum is σ = 3460253208192. Its totient is φ = 415603200000.

The previous prime is 1212231999997. The next prime is 1212232000003. The reversal of 1212232000000 is 2322121.

It is an interprime number because it is at equal distance from previous prime (1212231999997) and next prime (1212232000003).

It is a tau number, because it is divible by the number of its divisors (280).

It is not an unprimeable number, because it can be changed into a prime (1212232000003) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 55989177 + ... + 56010823.

Almost surely, 21212232000000 is an apocalyptic number.

1212232000000 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 1212232000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730126604096).

1212232000000 is an abundant number, since it is smaller than the sum of its proper divisors (2248021208192).

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

1212232000000 is an frugal number, since it uses more digits than its factorization.

1212232000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21702 (or 21661 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 1212232000000 its reverse (2322121), we get a palindrome (1212234322121).

The spelling of 1212232000000 in words is "one trillion, two hundred twelve billion, two hundred thirty-two million", and thus it is an aban number.