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12022011331 = 118912279889
BaseRepresentation
bin10110011001001000…
…10101010111000011
31011000211112110012221
423030210111113003
5144110113330311
65304533231511
7603626260501
oct131444252703
934024473187
1012022011331
11510a126060
1223b6192597
1311978a0595
1482090b671
154a566c671
hex2cc9155c3

12022011331 has 8 divisors (see below), whose sum is σ = 13262281200. Its totient is φ = 10806301440.

The previous prime is 12022011299. The next prime is 12022011347. The reversal of 12022011331 is 13311022021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12022011331 - 25 = 12022011299 is a prime.

It is a super-3 number, since 3×120220113313 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12022011031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6138966 + ... + 6140923.

It is an arithmetic number, because the mean of its divisors is an integer number (1657785150).

Almost surely, 212022011331 is an apocalyptic number.

12022011331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12022011331 is a deficient number, since it is larger than the sum of its proper divisors (1240269869).

12022011331 is a wasteful number, since it uses less digits than its factorization.

12022011331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12279989.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12022011331 its reverse (13311022021), we get a palindrome (25333033352).

The spelling of 12022011331 in words is "twelve billion, twenty-two million, eleven thousand, three hundred thirty-one".

Divisors: 1 11 89 979 12279889 135078779 1092910121 12022011331