Search a number
-
+
12213323311200 = 2535211974769339
BaseRepresentation
bin1011000110111010001011…
…0011000010100001100000
31121020120201111112010100020
42301232202303002201200
53100100341231424300
641550420120553440
72400245352153264
oct261564263024140
947216644463306
1012213323311200
1139897066769a0
121453035322880
136a7933080b4b
143031b134a0a4
15162a6adac8a0
hexb1ba2cc2860

12213323311200 has 288 divisors, whose sum is σ = 43815506878080. Its totient is φ = 2930281267200.

The previous prime is 12213323311183. The next prime is 12213323311243. The reversal of 12213323311200 is 211332331221.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 176131 + ... + 4945469.

It is an arithmetic number, because the mean of its divisors is an integer number (152137176660).

Almost surely, 212213323311200 is an apocalyptic number.

12213323311200 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 12213323311200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21907753439040).

12213323311200 is an abundant number, since it is smaller than the sum of its proper divisors (31602183566880).

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

12213323311200 is a wasteful number, since it uses less digits than its factorization.

12213323311200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769470 (or 4769457 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12213323311200 its reverse (211332331221), we get a palindrome (12424655642421).

The spelling of 12213323311200 in words is "twelve trillion, two hundred thirteen billion, three hundred twenty-three million, three hundred eleven thousand, two hundred".