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12212001122201 = 312841611386311
BaseRepresentation
bin1011000110110101001111…
…1111010010011110011001
31121020110022100120222000022
42301231103333102132121
53100040134241402301
641550041005520225
72400200525555666
oct261552377223631
947213270528008
1012212001122201
1139890982a3811
121452926573075
136a77821772aa
143030c78d0a6d
151629dec87d1b
hexb1b53fd2799

12212001122201 has 8 divisors (see below), whose sum is σ = 12605990097408. Its totient is φ = 11818015488000.

The previous prime is 12212001122117. The next prime is 12212001122219. The reversal of 12212001122201 is 10222110021221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12212001122201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212001122201.

It is not an unprimeable number, because it can be changed into a prime (12212001122231) 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, 8115836 + ... + 9502146.

It is an arithmetic number, because the mean of its divisors is an integer number (1575748762176).

Almost surely, 212212001122201 is an apocalyptic number.

It is an amenable number.

12212001122201 is a deficient number, since it is larger than the sum of its proper divisors (393988975207).

12212001122201 is a wasteful number, since it uses less digits than its factorization.

12212001122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670503.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212001122201 its reverse (10222110021221), we get a palindrome (22434111143422).

The spelling of 12212001122201 in words is "twelve trillion, two hundred twelve billion, one million, one hundred twenty-two thousand, two hundred one".

Divisors: 1 31 284161 1386311 8808991 42975641 393935520071 12212001122201