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12211423025 = 521979325421
BaseRepresentation
bin10110101111101101…
…11000011100110001
31011112000221120012212
423113312320130301
5200002111014100
65335421101505
7611416245254
oct132766703461
934460846185
1012211423025
1151a703694a
1224496b7895
1311c7bbb2c9
1483bb3509b
154b70d4635
hex2d7db8731

12211423025 has 24 divisors (see below), whose sum is σ = 16140931200. Its totient is φ = 9137793600.

The previous prime is 12211423019. The next prime is 12211423031. The reversal of 12211423025 is 52032411221.

It is an interprime number because it is at equal distance from previous prime (12211423019) and next prime (12211423031).

It is not a de Polignac number, because 12211423025 - 24 = 12211423009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125186 + ... + 200235.

It is an arithmetic number, because the mean of its divisors is an integer number (672538800).

Almost surely, 212211423025 is an apocalyptic number.

It is an amenable number.

12211423025 is a deficient number, since it is larger than the sum of its proper divisors (3929508175).

12211423025 is a wasteful number, since it uses less digits than its factorization.

12211423025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325529 (or 325524 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 12211423025 its reverse (52032411221), we get a palindrome (64243834246).

The spelling of 12211423025 in words is "twelve billion, two hundred eleven million, four hundred twenty-three thousand, twenty-five".

Divisors: 1 5 19 25 79 95 395 475 1501 1975 7505 37525 325421 1627105 6182999 8135525 25708259 30914995 128541295 154574975 488456921 642706475 2442284605 12211423025