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122401130215 = 57131006926717
BaseRepresentation
bin111000111111110101…
…1010000011011100111
3102200221100022122221011
41301333223100123213
54001134142131330
6132121425003051
711562133304020
oct1617753203347
9380840278834
10122401130215
1147a01279861
121b87ba83487
13b7087aa590
145cd21bbc47
1532b5ba182a
hex1c7fad06e7

122401130215 has 32 divisors (see below), whose sum is σ = 180801774720. Its totient is φ = 77465286144.

The previous prime is 122401130209. The next prime is 122401130221. The reversal of 122401130215 is 512031104221.

It is an interprime number because it is at equal distance from previous prime (122401130209) and next prime (122401130221).

It is a cyclic number.

It is not a de Polignac number, because 122401130215 - 23 = 122401130207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4568037 + ... + 4594753.

It is an arithmetic number, because the mean of its divisors is an integer number (5650055460).

Almost surely, 2122401130215 is an apocalyptic number.

122401130215 is a deficient number, since it is larger than the sum of its proper divisors (58400644505).

122401130215 is a wasteful number, since it uses less digits than its factorization.

122401130215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36811.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 122401130215 its reverse (512031104221), we get a palindrome (634432234436).

The spelling of 122401130215 in words is "one hundred twenty-two billion, four hundred one million, one hundred thirty thousand, two hundred fifteen".

Divisors: 1 5 7 13 35 65 91 455 10069 26717 50345 70483 130897 133585 187019 347321 352415 654485 916279 935095 1736605 2431247 4581395 12156235 269013473 1345067365 1883094311 3497175149 9415471555 17485875745 24480226043 122401130215