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121101202212 = 22315731641521
BaseRepresentation
bin111000011001000110…
…0011011001100100100
3102120120202021110221120
41300302030123030210
53441003401432322
6131344431013540
711515000143324
oct1606214331444
9376522243846
10121101202212
11473a45206a1
121b57866a2b0
13b55c399303
145c0b6b9284
15323b9c7a5c
hex1c3231b324

121101202212 has 24 divisors (see below), whose sum is σ = 282587874912. Its totient is φ = 40364438400.

The previous prime is 121101202199. The next prime is 121101202237. The reversal of 121101202212 is 212202101121.

It is a junction number, because it is equal to n+sod(n) for n = 121101202191 and 121101202200.

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, 131989 + ... + 509532.

It is an arithmetic number, because the mean of its divisors is an integer number (11774494788).

Almost surely, 2121101202212 is an apocalyptic number.

121101202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121101202212 is an abundant number, since it is smaller than the sum of its proper divisors (161486672700).

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

121101202212 is a wasteful number, since it uses less digits than its factorization.

121101202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657259 (or 657257 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121101202212 its reverse (212202101121), we get a palindrome (333303303333).

The spelling of 121101202212 in words is "one hundred twenty-one billion, one hundred one million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 15731 31462 47193 62924 94386 188772 641521 1283042 1924563 2566084 3849126 7698252 10091766851 20183533702 30275300553 40367067404 60550601106 121101202212