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122102101000001 = 193632653373057
BaseRepresentation
bin11011110000110100011100…
…010110110011111101000001
3121000022211212100200002100002
4123300310130112303331001
5112001010100324000001
61111404533020405345
734501404613651163
oct3360643426637501
9530284770602302
10122102101000001
11359a6234901531
12118402566a6855
13531924284b835
142221ab7a0a933
15e1b25103146b
hex6f0d1c5b3f41

122102101000001 has 4 divisors (see below), whose sum is σ = 122734754373252. Its totient is φ = 121469447626752.

The previous prime is 122102100999997. The next prime is 122102101000007. The reversal of 122102101000001 is 100000101201221.

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 22940038259776 + 99162062740225 = 4789576^2 + 9958015^2 .

It is a cyclic number.

It is not a de Polignac number, because 122102101000001 - 22 = 122102100999997 is a prime.

It is a super-2 number, since 2×1221021010000012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122102101000007) 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, 316326686336 + ... + 316326686721.

It is an arithmetic number, because the mean of its divisors is an integer number (30683688593313).

Almost surely, 2122102101000001 is an apocalyptic number.

It is an amenable number.

122102101000001 is a deficient number, since it is larger than the sum of its proper divisors (632653373251).

122102101000001 is an equidigital number, since it uses as much as digits as its factorization.

122102101000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632653373250.

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

Adding to 122102101000001 its reverse (100000101201221), we get a palindrome (222102202201222).

The spelling of 122102101000001 in words is "one hundred twenty-two trillion, one hundred two billion, one hundred one million, one", and thus it is an aban number.

Divisors: 1 193 632653373057 122102101000001