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122021122123 = 1972093929581
BaseRepresentation
bin111000110100100000…
…1101001000001001011
3102122221212021020211101
41301221001221001023
53444344401401443
6132020012042231
711546540265505
oct1615101510113
9378855236741
10122021122123
114782681908a
121b794763377
13b677b48814
145c9793cd75
15329263b84d
hex1c6906904b

122021122123 has 8 divisors (see below), whose sum is σ = 122650521840. Its totient is φ = 121391823840.

The previous prime is 122021122121. The next prime is 122021122151. The reversal of 122021122123 is 321221120221.

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

It is a cyclic number.

It is not a de Polignac number, because 122021122123 - 21 = 122021122121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122021122123.

It is not an unprimeable number, because it can be changed into a prime (122021122121) 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, 4110193 + ... + 4139773.

It is an arithmetic number, because the mean of its divisors is an integer number (15331315230).

Almost surely, 2122021122123 is an apocalyptic number.

122021122123 is a deficient number, since it is larger than the sum of its proper divisors (629399717).

122021122123 is a wasteful number, since it uses less digits than its factorization.

122021122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50717.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122021122123 its reverse (321221120221), we get a palindrome (443242242344).

The spelling of 122021122123 in words is "one hundred twenty-two billion, twenty-one million, one hundred twenty-two thousand, one hundred twenty-three".

Divisors: 1 197 20939 29581 4124983 5827457 619396559 122021122123