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12220200210221 = 178353231287569
BaseRepresentation
bin1011000111010011110010…
…1100010100111100101101
31121021020110202121210022222
42301310330230110330231
53100203432223211341
641553514340445125
72400610644634463
oct261647454247455
947236422553288
1012220200210221
113991615490a13
1214544343a97a5
136a848aa15573
143036647c0833
15162d1e9ac44b
hexb1d3cb14f2d

12220200210221 has 8 divisors (see below), whose sum is σ = 12229360461120. Its totient is φ = 12211042548672.

The previous prime is 12220200210187. The next prime is 12220200210233. The reversal of 12220200210221 is 12201200202221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12220200210221 - 222 = 12220196015917 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 12220200210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220200210121) 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, 8847125 + ... + 10134693.

It is an arithmetic number, because the mean of its divisors is an integer number (1528670057640).

Almost surely, 212220200210221 is an apocalyptic number.

It is an amenable number.

12220200210221 is a deficient number, since it is larger than the sum of its proper divisors (9160250899).

12220200210221 is a wasteful number, since it uses less digits than its factorization.

12220200210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294675.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12220200210221 its reverse (12201200202221), we get a palindrome (24421400412442).

The spelling of 12220200210221 in words is "twelve trillion, two hundred twenty billion, two hundred million, two hundred ten thousand, two hundred twenty-one".

Divisors: 1 1783 5323 1287569 9490909 2295735527 6853729787 12220200210221