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12201131010 = 23519122917417
BaseRepresentation
bin10110101110011111…
…00111110000000010
31011111022120200020010
423113033213300002
5144441442143020
65334412325350
7611232621345
oct132717476002
934438520203
1012201131010
1151a1247352
122446173856
1311c5a26863
1483a61645c
154b624ede0
hex2d73e7c02

12201131010 has 64 divisors (see below), whose sum is σ = 30850761600. Its totient is φ = 3079706112.

The previous prime is 12201130999. The next prime is 12201131017. The reversal of 12201131010 is 1013110221.

It is not an unprimeable number, because it can be changed into a prime (12201131017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691822 + ... + 709238.

It is an arithmetic number, because the mean of its divisors is an integer number (482043150).

Almost surely, 212201131010 is an apocalyptic number.

12201131010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12201131010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15425380800).

12201131010 is an abundant number, since it is smaller than the sum of its proper divisors (18649630590).

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

12201131010 is a wasteful number, since it uses less digits than its factorization.

12201131010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18675.

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

Adding to 12201131010 its reverse (1013110221), we get a palindrome (13214241231).

The spelling of 12201131010 in words is "twelve billion, two hundred one million, one hundred thirty-one thousand, ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 1229 2458 3687 6145 7374 12290 17417 18435 23351 34834 36870 46702 52251 70053 87085 104502 116755 140106 174170 233510 261255 330923 350265 522510 661846 700530 992769 1654615 1985538 3309230 4963845 9927690 21405493 42810986 64216479 107027465 128432958 214054930 321082395 406704367 642164790 813408734 1220113101 2033521835 2440226202 4067043670 6100565505 12201131010