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122021204223 = 397419316853
BaseRepresentation
bin111000110100100000…
…1111101000011111111
3102122221212102102110010
41301221001331003333
53444344412013343
6132020013514303
711546541060042
oct1615101750377
9378855372403
10122021204223
1147826874836
121b7947a2993
13b677b76cb9
145c97960c59
153292655d33
hex1c6907d0ff

122021204223 has 8 divisors (see below), whose sum is σ = 164372206768. Its totient is φ = 80508835584.

The previous prime is 122021204219. The next prime is 122021204237. The reversal of 122021204223 is 322402120221.

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

It is not a de Polignac number, because 122021204223 - 22 = 122021204219 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 122021204223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021204243) 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, 209658136 + ... + 209658717.

It is an arithmetic number, because the mean of its divisors is an integer number (20546525846).

Almost surely, 2122021204223 is an apocalyptic number.

122021204223 is a deficient number, since it is larger than the sum of its proper divisors (42351002545).

122021204223 is an equidigital number, since it uses as much as digits as its factorization.

122021204223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419316953.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 122021204223 its reverse (322402120221), we get a palindrome (444423324444).

The spelling of 122021204223 in words is "one hundred twenty-two billion, twenty-one million, two hundred four thousand, two hundred twenty-three".

Divisors: 1 3 97 291 419316853 1257950559 40673734741 122021204223