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11020201212 = 2233724820273
BaseRepresentation
bin10100100001101101…
…01110110011111100
31001110000110020002110
422100312232303330
5140032132414322
65021305054020
7540043110336
oct122066566374
931400406073
1011020201212
114745686309
122176787310
13106817b527
1476784c456
1544772ec0c
hex290daecfc

11020201212 has 24 divisors (see below), whose sum is σ = 26408771536. Its totient is φ = 3574119168.

The previous prime is 11020201201. The next prime is 11020201259. The reversal of 11020201212 is 21210202011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12409693 + ... + 12410580.

Almost surely, 211020201212 is an apocalyptic number.

11020201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11020201212 is an abundant number, since it is smaller than the sum of its proper divisors (15388570324).

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

11020201212 is a wasteful number, since it uses less digits than its factorization.

11020201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24820317 (or 24820315 counting only the distinct ones).

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

Adding to 11020201212 its reverse (21210202011), we get a palindrome (32230403223).

The spelling of 11020201212 in words is "eleven billion, twenty million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 24820273 49640546 74460819 99281092 148921638 297843276 918350101 1836700202 2755050303 3673400404 5510100606 11020201212