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122221100201 = 491248922811
BaseRepresentation
bin111000111010011110…
…0011111110010101001
3102200110210120012011212
41301310330133302221
54000302100201301
6132051514202505
711554516132124
oct1616474376251
9380423505155
10122221100201
1147919696622
121b82b723435
13b6aa3c5b45
145cb63173bb
1532a4e8e4bb
hex1c74f1fca9

122221100201 has 4 divisors (see below), whose sum is σ = 122470023504. Its totient is φ = 121972176900.

The previous prime is 122221100191. The next prime is 122221100257. The reversal of 122221100201 is 102001122221.

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 122221100201 - 26 = 122221100137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122221180201) 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, 124460915 + ... + 124461896.

It is an arithmetic number, because the mean of its divisors is an integer number (30617505876).

Almost surely, 2122221100201 is an apocalyptic number.

It is an amenable number.

122221100201 is a deficient number, since it is larger than the sum of its proper divisors (248923303).

122221100201 is an equidigital number, since it uses as much as digits as its factorization.

122221100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248923302.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122221100201 its reverse (102001122221), we get a palindrome (224222222422).

The spelling of 122221100201 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, two hundred one".

Divisors: 1 491 248922811 122221100201