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122222010001 = 7132946313759
BaseRepresentation
bin111000111010011111…
…1111101111010010001
3102200110212021102012011
41301310333331322101
54000302313310001
6132051545502521
711554526641450
oct1616477757221
9380425242164
10122222010001
114791a158123
121b82baa1a41
13b6aa653ca0
145cb64b2b97
1532a50bdd51
hex1c74ffde91

122222010001 has 16 divisors (see below), whose sum is σ = 155614233600. Its totient is φ = 93368536128.

The previous prime is 122222009999. The next prime is 122222010007. The reversal of 122222010001 is 100010222221.

It is a happy number.

It is not a de Polignac number, because 122222010001 - 21 = 122222009999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (122222010007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23154241 + ... + 23159518.

It is an arithmetic number, because the mean of its divisors is an integer number (9725889600).

Almost surely, 2122222010001 is an apocalyptic number.

It is an amenable number.

122222010001 is a deficient number, since it is larger than the sum of its proper divisors (33392223599).

122222010001 is a wasteful number, since it uses less digits than its factorization.

122222010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46313808.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122222010001 its reverse (100010222221), we get a palindrome (222232232222).

The spelling of 122222010001 in words is "one hundred twenty-two billion, two hundred twenty-two million, ten thousand, one".

Divisors: 1 7 13 29 91 203 377 2639 46313759 324196313 602078867 1343099011 4214552069 9401693077 17460287143 122222010001