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121212020332 = 221331471599863
BaseRepresentation
bin111000011100011001…
…1001010011001101100
3102120212110210121211101
41300320303022121230
53441220234122312
6131403430132444
711520514113244
oct1607063123154
9376773717741
10121212020332
1147451030a17
121b5a97b1124
13b579329b70
145c1c2c4b24
1532465b7a57
hex1c38cca66c

121212020332 has 48 divisors (see below), whose sum is σ = 240824328192. Its totient is φ = 52987429440.

The previous prime is 121212020291. The next prime is 121212020429. The reversal of 121212020332 is 233020212121.

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, 724168 + ... + 875695.

It is an arithmetic number, because the mean of its divisors is an integer number (5017173504).

Almost surely, 2121212020332 is an apocalyptic number.

It is an amenable number.

121212020332 is a deficient number, since it is larger than the sum of its proper divisors (119612307860).

121212020332 is a wasteful number, since it uses less digits than its factorization.

121212020332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599958 (or 1599956 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 121212020332 its reverse (233020212121), we get a palindrome (354232232453).

The spelling of 121212020332 in words is "one hundred twenty-one billion, two hundred twelve million, twenty thousand, three hundred thirty-two".

Divisors: 1 2 4 13 26 31 47 52 62 94 124 188 403 611 806 1222 1457 1612 2444 2914 5828 18941 37882 75764 1599863 3199726 6399452 20798219 41596438 49595753 75193561 83192876 99191506 150387122 198383012 300774244 644744789 977516293 1289489578 1955032586 2331000391 2578979156 3910065172 4662000782 9324001564 30303005083 60606010166 121212020332