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122122212119 = 909113433309
BaseRepresentation
bin111000110111100001…
…1010001001100010111
3102200012220111011020022
41301233003101030113
54000101241241434
6132034022455355
711552205450515
oct1615703211427
9380186434208
10122122212119
1147878894536
121b80259455b
13b692a8149b
145ca71354b5
15329b45922e
hex1c6f0d1317

122122212119 has 4 divisors (see below), whose sum is σ = 122135654520. Its totient is φ = 122108769720.

The previous prime is 122122212083. The next prime is 122122212139. The reversal of 122122212119 is 911212221221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 911212221221 = 1947958537959.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122122212119 is a prime.

It is a super-2 number, since 2×1221222121192 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122122212139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6707564 + ... + 6725745.

It is an arithmetic number, because the mean of its divisors is an integer number (30533913630).

Almost surely, 2122122212119 is an apocalyptic number.

122122212119 is a deficient number, since it is larger than the sum of its proper divisors (13442401).

122122212119 is an equidigital number, since it uses as much as digits as its factorization.

122122212119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13442400.

The product of its digits is 576, while the sum is 26.

The spelling of 122122212119 in words is "one hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, one hundred nineteen".

Divisors: 1 9091 13433309 122122212119