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122220113313 = 340740037771
BaseRepresentation
bin111000111010011100…
…0101110110110100001
3102200110201201001102110
41301310320232312201
54000301322111223
6132051441105533
711554504551654
oct1616470566641
9380421631373
10122220113313
1147919082111
121b82b3282a9
13b6aa13b89c
145cb613b89b
1532a4d46d93
hex1c74e2eda1

122220113313 has 4 divisors (see below), whose sum is σ = 162960151088. Its totient is φ = 81480075540.

The previous prime is 122220113297. The next prime is 122220113329. The reversal of 122220113313 is 313311022221.

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 an interprime number because it is at equal distance from previous prime (122220113297) and next prime (122220113329).

It is not a de Polignac number, because 122220113313 - 24 = 122220113297 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 122220113313.

It is not an unprimeable number, because it can be changed into a prime (122220113363) 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, 20370018883 + ... + 20370018888.

It is an arithmetic number, because the mean of its divisors is an integer number (40740037772).

Almost surely, 2122220113313 is an apocalyptic number.

It is an amenable number.

122220113313 is a deficient number, since it is larger than the sum of its proper divisors (40740037775).

122220113313 is an equidigital number, since it uses as much as digits as its factorization.

122220113313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40740037774.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 122220113313 its reverse (313311022221), we get a palindrome (435531135534).

The spelling of 122220113313 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred thirteen thousand, three hundred thirteen".

Divisors: 1 3 40740037771 122220113313