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122022220321 = 235305313927
BaseRepresentation
bin111000110100100010…
…1110101001000100001
3102122221221100001021101
41301221011311020201
53444400142022241
6132020051354401
711546552521321
oct1615105651041
9378857301241
10122022220321
11478273a9191
121b794bb2a01
13b678141641
145c97b47281
1532927a6e31
hex1c69175221

122022220321 has 4 divisors (see below), whose sum is σ = 127327534272. Its totient is φ = 116716906372.

The previous prime is 122022220319. The next prime is 122022220351. The reversal of 122022220321 is 123022220221.

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 122022220321 - 21 = 122022220319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122022220351) 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, 2652656941 + ... + 2652656986.

It is an arithmetic number, because the mean of its divisors is an integer number (31831883568).

Almost surely, 2122022220321 is an apocalyptic number.

It is an amenable number.

122022220321 is a deficient number, since it is larger than the sum of its proper divisors (5305313951).

122022220321 is an equidigital number, since it uses as much as digits as its factorization.

122022220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305313950.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 122022220321 its reverse (123022220221), we get a palindrome (245044440542).

The spelling of 122022220321 in words is "one hundred twenty-two billion, twenty-two million, two hundred twenty thousand, three hundred twenty-one".

Divisors: 1 23 5305313927 122022220321