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121214212300 = 22521212142123
BaseRepresentation
bin111000011100011101…
…1100001100011001100
3102120212121220222122101
41300320323201203030
53441221314243200
6131403545124444
711520541542646
oct1607073414314
9376777828571
10121214212300
1147452298865
121b5aa489724
13b57991679c
145c1c6d5896
15324689c26a
hex1c38ee18cc

121214212300 has 18 divisors (see below), whose sum is σ = 263034840908. Its totient is φ = 48485684880.

The previous prime is 121214212297. The next prime is 121214212309. The reversal of 121214212300 is 3212412121.

It is not an unprimeable number, because it can be changed into a prime (121214212309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606070962 + ... + 606071161.

Almost surely, 2121214212300 is an apocalyptic number.

121214212300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121214212300 is an abundant number, since it is smaller than the sum of its proper divisors (141820628608).

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

121214212300 is a wasteful number, since it uses less digits than its factorization.

121214212300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212142137 (or 1212142130 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121214212300 its reverse (3212412121), we get a palindrome (124426624421).

The spelling of 121214212300 in words is "one hundred twenty-one billion, two hundred fourteen million, two hundred twelve thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1212142123 2424284246 4848568492 6060710615 12121421230 24242842460 30303553075 60607106150 121214212300