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122101020010001 = 675173318084397
BaseRepresentation
bin11011110000110011011011…
…111011001010011000010001
3121000022202002000121002211102
4123300303123323022120101
5112001000342110310001
61111404233443154145
734501336046461634
oct3360633373123021
9530282060532742
10122101020010001
11359a582a6a076a
121183bbb4675955
1353190cc8c5796
142221a14219c1b
15e1b1db1a2e6b
hex6f0cdbeca611

122101020010001 has 4 divisors (see below), whose sum is σ = 122101044846132. Its totient is φ = 122100995173872.

The previous prime is 122101020009967. The next prime is 122101020010037. The reversal of 122101020010001 is 100010020101221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6166163046976 + 115934856963025 = 2483176^2 + 10767305^2 .

It is a cyclic number.

It is not a de Polignac number, because 122101020010001 - 210 = 122101020008977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122101020040001) 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, 2290466 + ... + 15793931.

It is an arithmetic number, because the mean of its divisors is an integer number (30525261211533).

Almost surely, 2122101020010001 is an apocalyptic number.

It is an amenable number.

122101020010001 is a deficient number, since it is larger than the sum of its proper divisors (24836131).

122101020010001 is an equidigital number, since it uses as much as digits as its factorization.

122101020010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24836130.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122101020010001 its reverse (100010020101221), we get a palindrome (222111040111222).

The spelling of 122101020010001 in words is "one hundred twenty-two trillion, one hundred one billion, twenty million, ten thousand, one".

Divisors: 1 6751733 18084397 122101020010001