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122221123201 = 161117586191
BaseRepresentation
bin111000111010011110…
…0100101011010000001
3102200110210121100201201
41301310330211122001
54000302101420301
6132051514501201
711554516256152
oct1616474453201
9380423540651
10122221123201
1147919701931
121b82b734801
13b6aa403458
145cb6321929
1532a4e96201
hex1c74f25681

122221123201 has 4 divisors (see below), whose sum is σ = 122228725504. Its totient is φ = 122213520900.

The previous prime is 122221123151. The next prime is 122221123253. The reversal of 122221123201 is 102321122221.

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 122221123201 - 29 = 122221122689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122221123901) 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, 3776985 + ... + 3809206.

It is an arithmetic number, because the mean of its divisors is an integer number (30557181376).

Almost surely, 2122221123201 is an apocalyptic number.

It is an amenable number.

122221123201 is a deficient number, since it is larger than the sum of its proper divisors (7602303).

122221123201 is an equidigital number, since it uses as much as digits as its factorization.

122221123201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7602302.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122221123201 its reverse (102321122221), we get a palindrome (224542245422).

The spelling of 122221123201 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred one".

Divisors: 1 16111 7586191 122221123201