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11002120212 = 223916843351
BaseRepresentation
bin10100011111100011…
…10000100000010100
31001101202102121121210
422033301300200110
5140013020321322
65015421341420
7536433323136
oct121761604024
931352377553
1011002120212
114736456836
122170707870
1310644ba705
147652a3056
15445d5c70c
hex28fc70814

11002120212 has 12 divisors (see below), whose sum is σ = 25671613856. Its totient is φ = 3667373400.

The previous prime is 11002120201. The next prime is 11002120267. The reversal of 11002120212 is 21202120011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 916843351 = 11002120212 / (1 + 1 + 0 + 0 + 2 + 1 + 2 + 0 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458421664 + ... + 458421687.

Almost surely, 211002120212 is an apocalyptic number.

11002120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11002120212 is an abundant number, since it is smaller than the sum of its proper divisors (14669493644).

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

11002120212 is a wasteful number, since it uses less digits than its factorization.

11002120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916843358 (or 916843356 counting only the distinct ones).

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

Adding to 11002120212 its reverse (21202120011), we get a palindrome (32204240223).

The spelling of 11002120212 in words is "eleven billion, two million, one hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 916843351 1833686702 2750530053 3667373404 5501060106 11002120212