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122101110001 = 13596112720549
BaseRepresentation
bin111000110110111001…
…0110001010011110001
3102200011102210001120101
41301231302301103301
54000030341010001
6132031550312401
711551531211353
oct1615562612361
9380142701511
10122101110001
1147867991172
121b7b74b8701
13b68b5a3520
145ca44010d3
15329968ba01
hex1c6dcb14f1

122101110001 has 32 divisors (see below), whose sum is σ = 136991232000. Its totient is φ = 108118644480.

The previous prime is 122101109989. The next prime is 122101110041. The reversal of 122101110001 is 100011101221.

It is a cyclic number.

It is not a de Polignac number, because 122101110001 - 25 = 122101109969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122101110001.

It is not an unprimeable number, because it can be changed into a prime (122101110041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5931675 + ... + 5952223.

It is an arithmetic number, because the mean of its divisors is an integer number (4280976000).

Almost surely, 2122101110001 is an apocalyptic number.

It is an amenable number.

122101110001 is a deficient number, since it is larger than the sum of its proper divisors (14890121999).

122101110001 is a wasteful number, since it uses less digits than its factorization.

122101110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20809.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 122101110001 its reverse (100011101221), we get a palindrome (222112211222).

It can be divided in two parts, 12210 and 1110001, that added together give a palindrome (1122211).

The spelling of 122101110001 in words is "one hundred twenty-two billion, one hundred one million, one hundred ten thousand, one".

Divisors: 1 13 59 61 127 767 793 1651 3599 7493 7747 20549 46787 97409 100711 267137 457073 1212391 1253489 2609723 5941949 15761083 16295357 33926399 73955851 153973657 159193103 961426063 2001657541 2069510339 9392393077 122101110001