Search a number
-
+
12201021012000 = 253531901534851
BaseRepresentation
bin1011000110001100010110…
…0001011111100000100000
31121012101222010120120110010
42301203011201133200200
53044400142334341000
641541023252004520
72366331450302622
oct261430541374040
947171863516403
1012201021012000
113984473310477
121450781300740
136a67223c4b72
1430276551ac12
1516259ad26d50
hexb18c585f820

12201021012000 has 192 divisors, whose sum is σ = 39991645669248. Its totient is φ = 3251888000000.

The previous prime is 12201021011947. The next prime is 12201021012017. The reversal of 12201021012000 is 21012010221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22544575 + ... + 23079425.

It is an arithmetic number, because the mean of its divisors is an integer number (208289821194).

Almost surely, 212201021012000 is an apocalyptic number.

12201021012000 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 12201021012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19995822834624).

12201021012000 is an abundant number, since it is smaller than the sum of its proper divisors (27790624657248).

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

12201021012000 is a wasteful number, since it uses less digits than its factorization.

12201021012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536780 (or 536762 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12201021012000 its reverse (21012010221), we get a palindrome (12222033022221).

The spelling of 12201021012000 in words is "twelve trillion, two hundred one billion, twenty-one million, twelve thousand".