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122102010091 = 717192391859
BaseRepresentation
bin111000110110111011…
…0001101000011101011
3102200011111110210021001
41301231312031003223
54000031103310331
6132032021455431
711551541650465
oct1615566150353
9380144423231
10122102010091
1147868446446
121b7b7871577
13b68b82a119
145ca4597135
1532997b8561
hex1c6dd8d0eb

122102010091 has 8 divisors (see below), whose sum is σ = 123994022400. Its totient is φ = 120214783080.

The previous prime is 122102010071. The next prime is 122102010097. The reversal of 122102010091 is 190010201221.

It is a happy number.

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 122102010091 - 215 = 122101977323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122102010097) 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, 1144881 + ... + 1246978.

It is an arithmetic number, because the mean of its divisors is an integer number (15499252800).

Almost surely, 2122102010091 is an apocalyptic number.

122102010091 is a deficient number, since it is larger than the sum of its proper divisors (1892012309).

122102010091 is an equidigital number, since it uses as much as digits as its factorization.

122102010091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392649.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 122102010091 in words is "one hundred twenty-two billion, one hundred two million, ten thousand, ninety-one".

Divisors: 1 71 719 51049 2391859 169821989 1719746621 122102010091