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122002120221985 = 5199863142080181
BaseRepresentation
bin11011101111010111010101…
…000010011010010100100001
3120222222021210112012022200201
4123233113111002122110201
5111442340320234100420
61111251000021345201
734461235162241353
oct3357272502322441
9528867715168621
10122002120221985
1135967899305173
12118249b3268201
13530c99b00c363
14221ad113510d3
15e1884d84210a
hex6ef5d509a521

122002120221985 has 16 divisors (see below), whose sum is σ = 147308732697600. Its totient is φ = 96998707206720.

The previous prime is 122002120221953. The next prime is 122002120222007. The reversal of 122002120221985 is 589122021200221.

It is not a de Polignac number, because 122002120221985 - 25 = 122002120221953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70181406 + ... + 71898775.

It is an arithmetic number, because the mean of its divisors is an integer number (9206795793600).

Almost surely, 2122002120221985 is an apocalyptic number.

It is an amenable number.

122002120221985 is a deficient number, since it is larger than the sum of its proper divisors (25306612475615).

122002120221985 is a wasteful number, since it uses less digits than its factorization.

122002120221985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142081248.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 122002120221985 in words is "one hundred twenty-two trillion, two billion, one hundred twenty million, two hundred twenty-one thousand, nine hundred eighty-five".

Divisors: 1 5 199 863 995 4315 171737 858685 142080181 710400905 28273956019 122615196203 141369780095 613075981015 24400424044397 122002120221985