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120000211212 = 22372423958937
BaseRepresentation
bin110111111000010010…
…0011110100100001100
3102110202000120100020010
41233300210132210030
53431230023224322
6131043300553220
711445500652120
oct1576044364414
9373660510203
10120000211212
1146989a99882
121b30b9b2810
13b41525c54b
145b4539d580
1531c4ee820c
hex1bf091e90c

120000211212 has 48 divisors (see below), whose sum is σ = 320019194880. Its totient is φ = 34283778432.

The previous prime is 120000211211. The next prime is 120000211223. The reversal of 120000211212 is 212112000021.

It is a super-2 number, since 2×1200002112122 (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (120000211211) 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, 2006608 + ... + 2065544.

It is an arithmetic number, because the mean of its divisors is an integer number (6667066560).

Almost surely, 2120000211212 is an apocalyptic number.

120000211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120000211212 is an abundant number, since it is smaller than the sum of its proper divisors (200018983668).

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

120000211212 is a wasteful number, since it uses less digits than its factorization.

120000211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83190 (or 83188 counting only the distinct ones).

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

Adding to 120000211212 its reverse (212112000021), we get a palindrome (332112211233).

The spelling of 120000211212 in words is "one hundred twenty billion, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 24239 48478 58937 72717 96956 117874 145434 169673 176811 235748 290868 339346 353622 412559 509019 678692 707244 825118 1018038 1237677 1650236 2036076 2475354 4950708 1428573943 2857147886 4285721829 5714295772 8571443658 10000017601 17142887316 20000035202 30000052803 40000070404 60000105606 120000211212