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122020000111 = 196422105269
BaseRepresentation
bin111000110100011110…
…1010111000101101111
3102122221210011020201101
41301220331113011233
53444344110000421
6132015532023531
711546524613362
oct1615075270557
9378853136641
10122020000111
11478261220a9
121b794301ba7
13b677844bc9
145c9772a0d9
1532924b9191
hex1c68f5716f

122020000111 has 4 divisors (see below), whose sum is σ = 128442105400. Its totient is φ = 115597894824.

The previous prime is 122020000087. The next prime is 122020000127. The reversal of 122020000111 is 111000020221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111000020221 = 1033107454037.

It is a cyclic number.

It is not a de Polignac number, because 122020000111 - 25 = 122020000079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020000811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3211052616 + ... + 3211052653.

It is an arithmetic number, because the mean of its divisors is an integer number (32110526350).

Almost surely, 2122020000111 is an apocalyptic number.

122020000111 is a deficient number, since it is larger than the sum of its proper divisors (6422105289).

122020000111 is an equidigital number, since it uses as much as digits as its factorization.

122020000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422105288.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122020000111 its reverse (111000020221), we get a palindrome (233020020332).

The spelling of 122020000111 in words is "one hundred twenty-two billion, twenty million, one hundred eleven", and thus it is an aban number.

Divisors: 1 19 6422105269 122020000111