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12212001201222 = 233388915814923
BaseRepresentation
bin1011000110110101001111…
…1111100101110001000110
31121020110022100201222102000
42301231103333211301012
53100040134301414342
641550041011330130
72400200526335244
oct261552377456106
947213270658360
1012212001201222
113989098348119
1214529265b0946
136a77821a4254
143030c7911794
151629deca144c
hexb1b53fe5c46

12212001201222 has 32 divisors (see below), whose sum is σ = 27138482904960. Its totient is φ = 4070561698440.

The previous prime is 12212001201217. The next prime is 12212001201233. The reversal of 12212001201222 is 22210210021221.

It is a happy number.

12212001201222 is a `hidden beast` number, since 1 + 221 + 20 + 0 + 1 + 201 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12212001201195 and 12212001201204.

It is a congruent number.

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, 807348 + ... + 5007575.

It is an arithmetic number, because the mean of its divisors is an integer number (848077590780).

Almost surely, 212212001201222 is an apocalyptic number.

12212001201222 is an abundant number, since it is smaller than the sum of its proper divisors (14926481703738).

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

12212001201222 is a wasteful number, since it uses less digits than its factorization.

12212001201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853825 (or 5853819 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12212001201222 its reverse (22210210021221), we get a palindrome (34422211222443).

The spelling of 12212001201222 in words is "twelve trillion, two hundred twelve billion, one million, two hundred one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 38891 77782 116673 233346 350019 700038 1050057 2100114 5814923 11629846 17444769 34889538 52334307 104668614 157002921 314005842 226148170393 452296340786 678444511179 1356889022358 2035333533537 4070667067074 6106000600611 12212001201222