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122120010212 = 221011097275549
BaseRepresentation
bin111000110111011101…
…0110111100111100100
3102200012202100021210012
41301232322313213210
54000100210311322
6132033503345352
711552150650124
oct1615672674744
9380182307705
10122120010212
1147877620182
121b8018b2258
13b692490195
145ca6b20c84
15329b171ae2
hex1c6eeb79e4

122120010212 has 24 divisors (see below), whose sum is σ = 216023484600. Its totient is φ = 60400121600.

The previous prime is 122120010167. The next prime is 122120010217. The reversal of 122120010212 is 212010021221.

It can be written as a sum of positive squares in 4 ways, for example, as 63370006756 + 58750003456 = 251734^2 + 242384^2 .

It is not an unprimeable number, because it can be changed into a prime (122120010217) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 305414 + ... + 580962.

It is an arithmetic number, because the mean of its divisors is an integer number (9000978525).

Almost surely, 2122120010212 is an apocalyptic number.

It is an amenable number.

122120010212 is a deficient number, since it is larger than the sum of its proper divisors (93903474388).

122120010212 is a wasteful number, since it uses less digits than its factorization.

122120010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276751 (or 276749 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122120010212 its reverse (212010021221), we get a palindrome (334130031433).

The spelling of 122120010212 in words is "one hundred twenty-two billion, one hundred twenty million, ten thousand, two hundred twelve".

Divisors: 1 2 4 101 202 404 1097 2194 4388 110797 221594 275549 443188 551098 1102196 27830449 55660898 111321796 302277253 604554506 1209109012 30530002553 61060005106 122120010212