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122210120101 = 1013120641777
BaseRepresentation
bin111000111010001001…
…0100111000110100101
3102200110000220100022111
41301310102213012211
54000241242320401
6132050443001021
711554323611146
oct1616422470645
9380400810274
10122210120101
1147913477063
121b827b09171
13b6a8050144
145cb4a99acd
1532a4020e51
hex1c744a71a5

122210120101 has 4 divisors (see below), whose sum is σ = 122330762892. Its totient is φ = 122089477312.

The previous prime is 122210120027. The next prime is 122210120107. The reversal of 122210120101 is 101021012221.

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 27206853025 + 95003267076 = 164945^2 + 308226^2 .

It is a cyclic number.

It is not a de Polignac number, because 122210120101 - 221 = 122208022949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210120107) 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, 60319876 + ... + 60321901.

It is an arithmetic number, because the mean of its divisors is an integer number (30582690723).

Almost surely, 2122210120101 is an apocalyptic number.

It is an amenable number.

122210120101 is a deficient number, since it is larger than the sum of its proper divisors (120642791).

122210120101 is a wasteful number, since it uses less digits than its factorization.

122210120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120642790.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122210120101 its reverse (101021012221), we get a palindrome (223231132322).

The spelling of 122210120101 in words is "one hundred twenty-two billion, two hundred ten million, one hundred twenty thousand, one hundred one".

Divisors: 1 1013 120641777 122210120101