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121010022012 = 22311916742591
BaseRepresentation
bin111000010110011000…
…0100110011001111100
3102120100101201001020010
41300230300212121330
53440312031201022
6131331412423220
711512512133665
oct1605460463174
9376311631203
10121010022012
1147358003660
121b552017b10
13b546523129
145bdd54236c
1532339b650c
hex1c2cc2667c

121010022012 has 24 divisors (see below), whose sum is σ = 308025510912. Its totient is φ = 36669703600.

The previous prime is 121010021981. The next prime is 121010022019. The reversal of 121010022012 is 210220010121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010022019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458371164 + ... + 458371427.

It is an arithmetic number, because the mean of its divisors is an integer number (12834396288).

Almost surely, 2121010022012 is an apocalyptic number.

121010022012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121010022012 is an abundant number, since it is smaller than the sum of its proper divisors (187015488900).

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

121010022012 is a wasteful number, since it uses less digits than its factorization.

121010022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916742609 (or 916742607 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121010022012 its reverse (210220010121), we get a palindrome (331230032133).

The spelling of 121010022012 in words is "one hundred twenty-one billion, ten million, twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 916742591 1833485182 2750227773 3666970364 5500455546 10084168501 11000911092 20168337002 30252505503 40336674004 60505011006 121010022012