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12021010111110 = 2357111317191239319
BaseRepresentation
bin1010111011101101110000…
…0010011001101010000110
31120120012022212022022222210
42232323130002121222012
53033423012042023420
641322213101404250
72350326560011530
oct256733402315206
946505285268883
1012021010111110
1139150999032a0
121421903b69686
136927654349b0
142d7b6a0c4850
1515ca626b89e0
hexaeedc099a86

12021010111110 has 512 divisors, whose sum is σ = 43173546393600. Its totient is φ = 2055879843840.

The previous prime is 12021010111069. The next prime is 12021010111157. The reversal of 12021010111110 is 1111101012021.

12021010111110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 9080031 + ... + 10319349.

It is an arithmetic number, because the mean of its divisors is an integer number (84323332800).

Almost surely, 212021010111110 is an apocalyptic number.

12021010111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12021010111110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21586773196800).

12021010111110 is an abundant number, since it is smaller than the sum of its proper divisors (31152536282490).

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

12021010111110 is a wasteful number, since it uses less digits than its factorization.

12021010111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239396.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12021010111110 its reverse (1111101012021), we get a palindrome (13132111123131).

The spelling of 12021010111110 in words is "twelve trillion, twenty-one billion, ten million, one hundred eleven thousand, one hundred ten".