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11201022112212 = 2232793938474723
BaseRepresentation
bin1010001011111111000011…
…1100011011000111010100
31110122210210111020001011200
42202333300330123013110
52432004143130042322
635453402321032500
72234150525015322
oct242776074330724
943583714201150
1011201022112212
113629365a77149
12130a9bb785730
1363333742304a
142aa1bd2bcd12
1514656e72b8ac
hexa2ff0f1b1d4

11201022112212 has 36 divisors (see below), whose sum is σ = 28672095990720. Its totient is φ = 3686412339792.

The previous prime is 11201022112151. The next prime is 11201022112213. The reversal of 11201022112212 is 21221122010211.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201022112213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1969234518 + ... + 1969240205.

Almost surely, 211201022112212 is an apocalyptic number.

11201022112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11201022112212 is an abundant number, since it is smaller than the sum of its proper divisors (17471073878508).

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

11201022112212 is a wasteful number, since it uses less digits than its factorization.

11201022112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938474812 (or 3938474807 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11201022112212 its reverse (21221122010211), we get a palindrome (32422144122423).

The spelling of 11201022112212 in words is "eleven trillion, two hundred one billion, twenty-two million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 79 158 237 316 474 711 948 1422 2844 3938474723 7876949446 11815424169 15753898892 23630848338 35446272507 47261696676 70892545014 141785090028 311139503117 622279006234 933418509351 1244558012468 1866837018702 2800255528053 3733674037404 5600511056106 11201022112212