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122101210001 = 431283297471
BaseRepresentation
bin111000110110111001…
…1001001101110010001
3102200011102222010202002
41301231303021232101
54000030402210001
6132031552403345
711551532106041
oct1615563115621
9380142863662
10122101210001
1147867a4a311
121b7b7546555
13b68b609bb4
145ca4429721
1532996ab46b
hex1c6dcc9b91

122101210001 has 4 divisors (see below), whose sum is σ = 122384507904. Its totient is φ = 121817912100.

The previous prime is 122101209961. The next prime is 122101210009. The reversal of 122101210001 is 100012101221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122101210001 - 222 = 122097015697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122101210009) 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, 141648305 + ... + 141649166.

It is an arithmetic number, because the mean of its divisors is an integer number (30596126976).

Almost surely, 2122101210001 is an apocalyptic number.

It is an amenable number.

122101210001 is a deficient number, since it is larger than the sum of its proper divisors (283297903).

122101210001 is an equidigital number, since it uses as much as digits as its factorization.

122101210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283297902.

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

Adding to 122101210001 its reverse (100012101221), we get a palindrome (222113311222).

The spelling of 122101210001 in words is "one hundred twenty-two billion, one hundred one million, two hundred ten thousand, one".

Divisors: 1 431 283297471 122101210001