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102100101210121 = 720727437036921
BaseRepresentation
bin10111001101110000001000…
…010000111010000000001001
3111101111200012121020201200111
4113031300020100322000021
5101340302001402210441
61001052050004034321
730335326454661130
oct2715601020720011
9441450177221614
10102100101210121
112a594456430793
12b54b8253929a1
1344c7cc91652a1
141b2d957d4a917
15bc0cd082a081
hex5cdc0843a009

102100101210121 has 8 divisors (see below), whose sum is σ = 116685902831744. Its totient is φ = 87514317807840.

The previous prime is 102100101210119. The next prime is 102100101210131. The reversal of 102100101210121 is 121012101001201.

It is a happy number.

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

It is not a de Polignac number, because 102100101210121 - 21 = 102100101210119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102100101210131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10990741 + ... + 18027661.

It is an arithmetic number, because the mean of its divisors is an integer number (14585737853968).

Almost surely, 2102100101210121 is an apocalyptic number.

It is an amenable number.

102100101210121 is a deficient number, since it is larger than the sum of its proper divisors (14585801621623).

102100101210121 is an equidigital number, since it uses as much as digits as its factorization.

102100101210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9109671.

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

Adding to 102100101210121 its reverse (121012101001201), we get a palindrome (223112202211322).

The spelling of 102100101210121 in words is "one hundred two trillion, one hundred billion, one hundred one million, two hundred ten thousand, one hundred twenty-one".

Divisors: 1 7 2072743 7036921 14509201 49258447 14585728744303 102100101210121