Search a number
-
+
12212011210 = 257174457303
BaseRepresentation
bin10110101111110010…
…01000000011001010
31011112002001110001111
423113321020003022
5200002233324320
65335441440534
7611424245140
oct132771100312
934462043044
1012212011210
1151a73a8853
12244994014a
1311c8065c49
1483bc49590
154b719da5a
hex2d7e480ca

12212011210 has 16 divisors (see below), whose sum is σ = 25121851776. Its totient is φ = 4186975248.

The previous prime is 12212011177. The next prime is 12212011241. The reversal of 12212011210 is 1211021221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87228582 + ... + 87228721.

It is an arithmetic number, because the mean of its divisors is an integer number (1570115736).

Almost surely, 212212011210 is an apocalyptic number.

12212011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212011210 is an abundant number, since it is smaller than the sum of its proper divisors (12909840566).

12212011210 is a wasteful number, since it uses less digits than its factorization.

12212011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174457317.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12212011210 its reverse (1211021221), we get a palindrome (13423032431).

The spelling of 12212011210 in words is "twelve billion, two hundred twelve million, eleven thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 70 174457303 348914606 872286515 1221201121 1744573030 2442402242 6106005605 12212011210