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12102110202 = 2371343151427
BaseRepresentation
bin10110100010101011…
…11000101111111010
31011020102020220012210
423101111320233322
5144241120011302
65320514115550
7605621145060
oct132125705772
934212226183
1012102110202
115150364576
122418b7bbb6
1311ab366970
1482b3dc030
154ac6e066c
hex2d1578bfa

12102110202 has 64 divisors (see below), whose sum is σ = 29859508224. Its totient is φ = 3184297920.

The previous prime is 12102110201. The next prime is 12102110233. The reversal of 12102110202 is 20201120121.

It is a super-2 number, since 2×121021102022 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12102110201) 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, 209613 + ... + 261039.

It is an arithmetic number, because the mean of its divisors is an integer number (466554816).

Almost surely, 212102110202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102110202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14929754112).

12102110202 is an abundant number, since it is smaller than the sum of its proper divisors (17757398022).

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

12102110202 is a wasteful number, since it uses less digits than its factorization.

12102110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51883.

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

Adding to 12102110202 its reverse (20201120121), we get a palindrome (32303230323).

The spelling of 12102110202 in words is "twelve billion, one hundred two million, one hundred ten thousand, two hundred two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 431 546 862 1293 2586 3017 5603 6034 9051 11206 16809 18102 33618 39221 51427 78442 102854 117663 154281 235326 308562 359989 668551 719978 1079967 1337102 2005653 2159934 4011306 4679857 9359714 14039571 22165037 28079142 44330074 66495111 132990222 155155259 288145481 310310518 465465777 576290962 864436443 930931554 1728872886 2017018367 4034036734 6051055101 12102110202