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121012121332 = 221091753158329
BaseRepresentation
bin111000010110011100…
…0100110111011110100
3102120100112122200221201
41300230320212323310
53440313100340312
6131331525422244
711512536026314
oct1605470467364
9376315580851
10121012121332
1147359207933
121b55286a984
13b546aa982b
145bdd92b444
153233c7d557
hex1c2ce26ef4

121012121332 has 24 divisors (see below), whose sum is σ = 213837331400. Its totient is φ = 59916381696.

The previous prime is 121012121311. The next prime is 121012121401. The reversal of 121012121332 is 233121210121.

It can be written as a sum of positive squares in 4 ways, for example, as 23615698276 + 97396423056 = 153674^2 + 312084^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685144 + ... + 843472.

Almost surely, 2121012121332 is an apocalyptic number.

It is an amenable number.

121012121332 is a deficient number, since it is larger than the sum of its proper divisors (92825210068).

121012121332 is a wasteful number, since it uses less digits than its factorization.

121012121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160195 (or 160193 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121012121332 its reverse (233121210121), we get a palindrome (354133331453).

The spelling of 121012121332 in words is "one hundred twenty-one billion, twelve million, one hundred twenty-one thousand, three hundred thirty-two".

Divisors: 1 2 4 109 218 436 1753 3506 7012 158329 191077 316658 382154 633316 764308 17257861 34515722 69031444 277550737 555101474 1110202948 30253030333 60506060666 121012121332