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122000011212 = 22353870722031
BaseRepresentation
bin111000110011111000…
…1000110111111001100
3102122220101112201002210
41301213301012333030
53444324000324322
6132013535350420
711546162661612
oct1614761067714
9378811481083
10122000011212
114781590a152
121b789682410
13b673666861
145c94c056b2
15329086b70c
hex1c67c46fcc

122000011212 has 48 divisors (see below), whose sum is σ = 290084239872. Its totient is φ = 39892981440.

The previous prime is 122000011183. The next prime is 122000011219. The reversal of 122000011212 is 212110000221.

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 (122000011219) 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, 5526637 + ... + 5548667.

It is an arithmetic number, because the mean of its divisors is an integer number (6043421664).

Almost surely, 2122000011212 is an apocalyptic number.

122000011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122000011212 is an abundant number, since it is smaller than the sum of its proper divisors (168084228660).

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

122000011212 is a wasteful number, since it uses less digits than its factorization.

122000011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30798 (or 30796 counting only the distinct ones).

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

Adding to 122000011212 its reverse (212110000221), we get a palindrome (334110011433).

The spelling of 122000011212 in words is "one hundred twenty-two billion, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 8707 17414 22031 26121 34828 44062 52242 66093 88124 104484 132186 264372 461471 922942 1167643 1384413 1845884 2335286 2768826 3502929 4670572 5537652 7005858 14011716 191823917 383647834 575471751 767295668 1150943502 2301887004 10166667601 20333335202 30500002803 40666670404 61000005606 122000011212