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122120210001 = 377611524497
BaseRepresentation
bin111000110111011101…
…1101000011001010001
3102200012202201102211210
41301232323220121101
54000100233210001
6132033511530333
711552152441446
oct1615673503121
9380182642753
10122120210001
1147877747299
121b8019899a9
13b6925300ba
145ca6b739cd
15329b1b0dd6
hex1c6eee8651

122120210001 has 8 divisors (see below), whose sum is σ = 162829355104. Its totient is φ = 81412269120.

The previous prime is 122120209963. The next prime is 122120210053. The reversal of 122120210001 is 100012021221.

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

It is not a de Polignac number, because 122120210001 - 227 = 121985992273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122120210701) 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, 29416 + ... + 495081.

It is an arithmetic number, because the mean of its divisors is an integer number (20353669388).

Almost surely, 2122120210001 is an apocalyptic number.

It is an amenable number.

122120210001 is a deficient number, since it is larger than the sum of its proper divisors (40709145103).

122120210001 is an equidigital number, since it uses as much as digits as its factorization.

122120210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602111.

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

Adding to 122120210001 its reverse (100012021221), we get a palindrome (222132231222).

The spelling of 122120210001 in words is "one hundred twenty-two billion, one hundred twenty million, two hundred ten thousand, one".

Divisors: 1 3 77611 232833 524497 1573491 40706736667 122120210001