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122112101101 = 235309221787
BaseRepresentation
bin111000110111001110…
…0101100101011101101
3102200012012110110112011
41301232130230223231
54000041144213401
6132033022041221
711552023506364
oct1615634545355
9380165413464
10122112101101
1147873108a21
121b7bb119211
13b690951233
145ca5a627db
15329a60d451
hex1c6e72caed

122112101101 has 4 divisors (see below), whose sum is σ = 127421322912. Its totient is φ = 116802879292.

The previous prime is 122112101093. The next prime is 122112101173. The reversal of 122112101101 is 101101211221.

It is a happy number.

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 122112101101 - 23 = 122112101093 is a prime.

It is a super-2 number, since 2×1221121011012 (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 (122112101191) 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, 2654610871 + ... + 2654610916.

It is an arithmetic number, because the mean of its divisors is an integer number (31855330728).

Almost surely, 2122112101101 is an apocalyptic number.

It is an amenable number.

122112101101 is a deficient number, since it is larger than the sum of its proper divisors (5309221811).

122112101101 is an equidigital number, since it uses as much as digits as its factorization.

122112101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309221810.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122112101101 its reverse (101101211221), we get a palindrome (223213312322).

The spelling of 122112101101 in words is "one hundred twenty-two billion, one hundred twelve million, one hundred one thousand, one hundred one".

Divisors: 1 23 5309221787 122112101101