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122011012211 = 1131734990253
BaseRepresentation
bin111000110100001101…
…1000100110001110011
3102122221011020121122012
41301220123010301303
53444334304342321
6132015011233135
711546355330524
oct1615033046163
9378834217565
10122011012211
1147821043390
121b7912a87ab
13b675a18c1a
145c9646a84b
1532917e105b
hex1c686c4c73

122011012211 has 8 divisors (see below), whose sum is σ = 133522809264. Its totient is φ = 110569196320.

The previous prime is 122011012187. The next prime is 122011012289. The reversal of 122011012211 is 112210110221.

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

It is a de Polignac number, because none of the positive numbers 2k-122011012211 is a prime.

It is a super-2 number, since 2×1220110122112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122011012111) 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, 17491640 + ... + 17498613.

It is an arithmetic number, because the mean of its divisors is an integer number (16690351158).

Almost surely, 2122011012211 is an apocalyptic number.

122011012211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122011012211 is a deficient number, since it is larger than the sum of its proper divisors (11511797053).

122011012211 is a wasteful number, since it uses less digits than its factorization.

122011012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34990581.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122011012211 its reverse (112210110221), we get a palindrome (234221122432).

It can be divided in two parts, 1220110 and 12211, that added together give a palindrome (1232321).

The spelling of 122011012211 in words is "one hundred twenty-two billion, eleven million, twelve thousand, two hundred eleven".

Divisors: 1 11 317 3487 34990253 384892783 11091910201 122011012211