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12221628130 = 254328422391
BaseRepresentation
bin10110110000111011…
…10011111011100010
31011112202011000222201
423120131303323202
5200012214100010
65340423523414
7611602060615
oct133035637342
934482130881
1012221628130
115201877118
122450bb956a
1311ca05232a
1483d23017c
154b7e4d23a
hex2d8773ee2

12221628130 has 16 divisors (see below), whose sum is σ = 22510534464. Its totient is φ = 4774961520.

The previous prime is 12221628109. The next prime is 12221628143. The reversal of 12221628130 is 3182612221.

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, 14210766 + ... + 14211625.

It is an arithmetic number, because the mean of its divisors is an integer number (1406908404).

Almost surely, 212221628130 is an apocalyptic number.

12221628130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221628130 is a deficient number, since it is larger than the sum of its proper divisors (10288906334).

12221628130 is a wasteful number, since it uses less digits than its factorization.

12221628130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28422441.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 12221628130 in words is "twelve billion, two hundred twenty-one million, six hundred twenty-eight thousand, one hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 28422391 56844782 142111955 284223910 1222162813 2444325626 6110814065 12221628130