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12212034631 = 311273101863
BaseRepresentation
bin10110101111110010…
…01101110001000111
31011112002002122011221
423113321031301013
5200002240102011
65335442141211
7611424403336
oct132771156107
934462078157
1012212034631
1151a7414405
122449951807
1311c80737c4
1483bc53d1d
154b71a5971
hex2d7e4dc47

12212034631 has 8 divisors (see below), whose sum is σ = 12705234944. Its totient is φ = 11725038360.

The previous prime is 12212034619. The next prime is 12212034641. The reversal of 12212034631 is 13643021221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12212034631 - 25 = 12212034599 is a prime.

It is a super-2 number, since 2×122120346312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212034596 and 12212034605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212034641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546995 + ... + 1554868.

It is an arithmetic number, because the mean of its divisors is an integer number (1588154368).

Almost surely, 212212034631 is an apocalyptic number.

12212034631 is a deficient number, since it is larger than the sum of its proper divisors (493200313).

12212034631 is a wasteful number, since it uses less digits than its factorization.

12212034631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102021.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12212034631 its reverse (13643021221), we get a palindrome (25855055852).

The spelling of 12212034631 in words is "twelve billion, two hundred twelve million, thirty-four thousand, six hundred thirty-one".

Divisors: 1 31 127 3937 3101863 96157753 393936601 12212034631