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2002112121211 = 19727753719231
BaseRepresentation
bin11101001000100111001…
…011101000100101111011
321002101210122011201120121
4131020213023220211323
5230300311200334321
64131431351034111
7264435130144606
oct35104713504573
97071718151517
102002112121211
11702100108804
1228403336b937
13116a4c007437
146cc8d1b333d
153712d63b441
hex1d2272e897b

2002112121211 has 16 divisors (see below), whose sum is σ = 2110775080960. Its totient is φ = 1893779015040.

The previous prime is 2002112121181. The next prime is 2002112121221. The reversal of 2002112121211 is 1121212112002.

It is a cyclic number.

It is not a de Polignac number, because 2002112121211 - 27 = 2002112121083 is a prime.

It is a super-2 number, since 2×20021121212112 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002112121221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104098966 + ... + 104118196.

It is an arithmetic number, because the mean of its divisors is an integer number (131923442560).

Almost surely, 22002112121211 is an apocalyptic number.

2002112121211 is a deficient number, since it is larger than the sum of its proper divisors (108662959749).

2002112121211 is a wasteful number, since it uses less digits than its factorization.

2002112121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27514.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2002112121211 its reverse (1121212112002), we get a palindrome (3123324233213).

It can be divided in two parts, 2002 and 112121211, that multiplied together give a palindrome (224466664422).

The spelling of 2002112121211 in words is "two trillion, two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred eleven".

Divisors: 1 19 727 7537 13813 19231 143203 365389 5479399 13980937 104108581 144944047 265637803 2753936893 105374322169 2002112121211