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122121210011101 = 7169019103218497
BaseRepresentation
bin11011110001000110001111…
…010101111001110111011101
3121000101200012002122102120221
4123301012033111321313131
5112001313214230323401
61111421413121041341
734502652266606620
oct3361061725716735
9530350162572527
10122121210011101
1135a033503a3394
1211843aaa186251
13531ac997664b2
1422229ab83ddb7
15e1b9bd9507a1
hex6f118f579ddd

122121210011101 has 8 divisors (see below), whose sum is σ = 139567924255680. Its totient is φ = 104674702541568.

The previous prime is 122121210011089. The next prime is 122121210011107. The reversal of 122121210011101 is 101110012121221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122121210011101 - 219 = 122121209486813 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 (122121210011107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50426116 + ... + 52792381.

It is an arithmetic number, because the mean of its divisors is an integer number (17445990531960).

Almost surely, 2122121210011101 is an apocalyptic number.

It is an amenable number.

122121210011101 is a deficient number, since it is larger than the sum of its proper divisors (17446714244579).

122121210011101 is a wasteful number, since it uses less digits than its factorization.

122121210011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103387523.

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

Adding to 122121210011101 its reverse (101110012121221), we get a palindrome (223231222132322).

The spelling of 122121210011101 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred ten million, eleven thousand, one hundred one".

Divisors: 1 7 169019 1183133 103218497 722529479 17445887144443 122121210011101