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122120001222 = 2320353333537
BaseRepresentation
bin111000110111011101…
…0110101011011000110
3102200012202022211110020
41301232322311123012
54000100210014342
6132033503240010
711552150611662
oct1615672653306
9380182284406
10122120001222
114787761444a
121b8018a9006
13b69248906b
145ca6b1b8a2
15329b16e0ec
hex1c6eeb56c6

122120001222 has 8 divisors (see below), whose sum is σ = 244240002456. Its totient is φ = 40706667072.

The previous prime is 122120001221. The next prime is 122120001229. The reversal of 122120001222 is 222100021221.

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

122120001222 is an admirable number.

It is a super-2 number, since 2×1221200012222 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120001221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10176666763 + ... + 10176666774.

It is an arithmetic number, because the mean of its divisors is an integer number (30530000307).

Almost surely, 2122120001222 is an apocalyptic number.

122120001222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122120001222 is a wasteful number, since it uses less digits than its factorization.

122120001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20353333542.

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

Adding to 122120001222 its reverse (222100021221), we get a palindrome (344220022443).

The spelling of 122120001222 in words is "one hundred twenty-two billion, one hundred twenty million, one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 20353333537 40706667074 61060000611 122120001222