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122020102221 = 362507650701
BaseRepresentation
bin111000110100011110…
…1110000000001001101
3102122221210100102210020
41301220331300001031
53444344121232341
6132015534132353
711546525520153
oct1615075600115
9378853312706
10122020102221
1147826191896
121b7943510b9
13b67787c524
145c977553d3
1532924d9566
hex1c68f7004d

122020102221 has 8 divisors (see below), whose sum is σ = 162696322464. Its totient is φ = 81345308400.

The previous prime is 122020102213. The next prime is 122020102223. The reversal of 122020102221 is 122201020221.

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

It is not a de Polignac number, because 122020102221 - 23 = 122020102213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122020102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020102223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137830 + ... + 512871.

It is an arithmetic number, because the mean of its divisors is an integer number (20337040308).

Almost surely, 2122020102221 is an apocalyptic number.

It is an amenable number.

122020102221 is a deficient number, since it is larger than the sum of its proper divisors (40676220243).

122020102221 is an equidigital number, since it uses as much as digits as its factorization.

122020102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713211.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122020102221 its reverse (122201020221), we get a palindrome (244221122442).

The spelling of 122020102221 in words is "one hundred twenty-two billion, twenty million, one hundred two thousand, two hundred twenty-one".

Divisors: 1 3 62507 187521 650701 1952103 40673367407 122020102221