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122110002001 = 1331213009637
BaseRepresentation
bin111000110111001010…
…0101100001101010001
3102200012001111211002201
41301232110230031101
54000040130031001
6132032505043201
711551666614511
oct1615624541521
9380161454081
10122110002001
1147871a04929
121b7ba486501
13b690397970
145ca5677841
15329a346501
hex1c6e52c351

122110002001 has 8 divisors (see below), whose sum is σ = 131545257704. Its totient is φ = 112680771840.

The previous prime is 122110001963. The next prime is 122110002011. The reversal of 122110002001 is 100200011221.

It can be written as a sum of positive squares in 4 ways, for example, as 16842848400 + 105267153601 = 129780^2 + 324449^2 .

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

It is not a de Polignac number, because 122110002001 - 231 = 119962518353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122110002011) 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, 1464246 + ... + 1545391.

It is an arithmetic number, because the mean of its divisors is an integer number (16443157213).

Almost surely, 2122110002001 is an apocalyptic number.

It is an amenable number.

122110002001 is a deficient number, since it is larger than the sum of its proper divisors (9435255703).

122110002001 is a wasteful number, since it uses less digits than its factorization.

122110002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012771.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122110002001 its reverse (100200011221), we get a palindrome (222310013222).

The spelling of 122110002001 in words is "one hundred twenty-two billion, one hundred ten million, two thousand, one".

Divisors: 1 13 3121 40573 3009637 39125281 9393077077 122110002001