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11202222012 = 22317269204137
BaseRepresentation
bin10100110111011010…
…00101011110111100
31001220200221211200120
422123231011132330
5140420232101022
65051330254540
7544413213252
oct123355053674
931820854616
1011202222012
1148293a9223
122207727450
131096aac147
14783ab05d2
154586d6d5c
hex29bb457bc

11202222012 has 48 divisors (see below), whose sum is σ = 27779099040. Its totient is φ = 3501340672.

The previous prime is 11202221983. The next prime is 11202222019. The reversal of 11202222012 is 21022220211.

It is a super-2 number, since 2×112022220122 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11202221982 and 11202222000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202222019) 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, 47193 + ... + 156944.

It is an arithmetic number, because the mean of its divisors is an integer number (578731230).

Almost surely, 211202222012 is an apocalyptic number.

11202222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11202222012 is an abundant number, since it is smaller than the sum of its proper divisors (16576877028).

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

11202222012 is a wasteful number, since it uses less digits than its factorization.

11202222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204430 (or 204428 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11202222012 its reverse (21022220211), we get a palindrome (32224442223).

The spelling of 11202222012 in words is "eleven billion, two hundred two million, two hundred twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 269 538 807 1076 1614 3228 4573 9146 13719 18292 27438 54876 204137 408274 612411 816548 1224822 2449644 3470329 6940658 10410987 13881316 20821974 41643948 54912853 109825706 164738559 219651412 329477118 658954236 933518501 1867037002 2800555503 3734074004 5601111006 11202222012