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12222210011020 = 22517113318121031
BaseRepresentation
bin1011000111011011010001…
…1111000110111110001100
31121021102122211102020201121
42301312310133012332030
53100222041230323040
641554450013450324
72401011520646152
oct261666437067614
947242584366647
1012222210011020
113992456a12009
1214548b54a09a4
136a871b2118c9
143037b56ab3d2
15162ddb158c4a
hexb1db47c6f8c

12222210011020 has 48 divisors (see below), whose sum is σ = 27416943021888. Its totient is φ = 4560583086080.

The previous prime is 12222210010999. The next prime is 12222210011059. The reversal of 12222210011020 is 2011001222221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12222210010985 and 12222210011003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159022096 + ... + 159098935.

It is an arithmetic number, because the mean of its divisors is an integer number (571186312956).

Almost surely, 212222210011020 is an apocalyptic number.

12222210011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222210011020 is an abundant number, since it is smaller than the sum of its proper divisors (15194733010868).

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

12222210011020 is a wasteful number, since it uses less digits than its factorization.

12222210011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318121170 (or 318121168 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222210011020 its reverse (2011001222221), we get a palindrome (14233211233241).

The spelling of 12222210011020 in words is "twelve trillion, two hundred twenty-two billion, two hundred ten million, eleven thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 113 170 226 340 452 565 1130 1921 2260 3842 7684 9605 19210 38420 318121031 636242062 1272484124 1590605155 3181210310 5408057527 6362420620 10816115054 21632230108 27040287635 35947676503 54080575270 71895353006 108161150540 143790706012 179738382515 359476765030 611110500551 718953530060 1222221001102 2444442002204 3055552502755 6111105005510 12222210011020