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122122021223113 = 175369664587121
BaseRepresentation
bin11011110001000110111111…
…101100011011101011001001
3121000101202021122002021021021
4123301012333230123223021
5112001321344413114423
61111422025420112441
734503011350031332
oct3361067754335311
9530352248067237
10122122021223113
1135a037272a1a3a
1211844095995721
13531b0988437c2
142222a47487289
15e1ba19c8e95d
hex6f11bfb1bac9

122122021223113 has 4 divisors (see below), whose sum is σ = 122191685811988. Its totient is φ = 122052356634240.

The previous prime is 122122021223039. The next prime is 122122021223117. The reversal of 122122021223113 is 311322120221221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5875737216064 + 116246284007049 = 2423992^2 + 10781757^2 .

It is a cyclic number.

It is not a de Polignac number, because 122122021223113 - 29 = 122122021222601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122122021223117) 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, 34832291808 + ... + 34832295313.

It is an arithmetic number, because the mean of its divisors is an integer number (30547921452997).

Almost surely, 2122122021223113 is an apocalyptic number.

It is an amenable number.

122122021223113 is a deficient number, since it is larger than the sum of its proper divisors (69664588875).

122122021223113 is an equidigital number, since it uses as much as digits as its factorization.

122122021223113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69664588874.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 122122021223113 its reverse (311322120221221), we get a palindrome (433444141444334).

The spelling of 122122021223113 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, twenty-one million, two hundred twenty-three thousand, one hundred thirteen".

Divisors: 1 1753 69664587121 122122021223113