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11012100211212 = 2235581164428421
BaseRepresentation
bin1010000000111111010001…
…0100100100001000001100
31102222202011012100002121020
42200033310110210020030
52420410240123224322
635230520005034140
72214412052242122
oct240176424441014
942882135302536
1011012100211212
113566229536771
12129a2760b5950
1361b58a274549
142a0dba5db912
151416b3b2205c
hexa03f452420c

11012100211212 has 24 divisors (see below), whose sum is σ = 25699504644912. Its totient is φ = 3670042334400.

The previous prime is 11012100211193. The next prime is 11012100211283. The reversal of 11012100211212 is 21211200121011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11012100211191 and 11012100211200.

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, 82147239 + ... + 82281182.

It is an arithmetic number, because the mean of its divisors is an integer number (1070812693538).

Almost surely, 211012100211212 is an apocalyptic number.

11012100211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11012100211212 is an abundant number, since it is smaller than the sum of its proper divisors (14687404433700).

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

11012100211212 is a wasteful number, since it uses less digits than its factorization.

11012100211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164434009 (or 164434007 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11012100211212 its reverse (21211200121011), we get a palindrome (32223300332223).

The spelling of 11012100211212 in words is "eleven trillion, twelve billion, one hundred million, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 5581 11162 16743 22324 33486 66972 164428421 328856842 493285263 657713684 986570526 1973141052 917675017601 1835350035202 2753025052803 3670700070404 5506050105606 11012100211212