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101220321220001 = 1719872996545819
BaseRepresentation
bin10111000000111100110001…
…010010100101010110100001
3111021101120100012222120111222
4113000330301102211112201
5101231343204213020001
6555135550145344425
730214632630311534
oct2700746122452641
9437346305876458
10101220321220001
112a28532a57a665
12b429214938115
13446305c825b89
141add13815aa1b
15ba7e8d52761b
hex5c0f314a55a1

101220321220001 has 8 divisors (see below), whose sum is σ = 107228395622880. Its totient is φ = 95218239912768.

The previous prime is 101220321219907. The next prime is 101220321220013. The reversal of 101220321220001 is 100022123022101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101220321220001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220321220301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498239131 + ... + 1498306688.

It is an arithmetic number, because the mean of its divisors is an integer number (13403549452860).

Almost surely, 2101220321220001 is an apocalyptic number.

It is an amenable number.

101220321220001 is a deficient number, since it is larger than the sum of its proper divisors (6008074402879).

101220321220001 is a wasteful number, since it uses less digits than its factorization.

101220321220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996547823.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 101220321220001 its reverse (100022123022101), we get a palindrome (201242444242102).

The spelling of 101220321220001 in words is "one hundred one trillion, two hundred twenty billion, three hundred twenty-one million, two hundred twenty thousand, one".

Divisors: 1 17 1987 33779 2996545819 50941278923 5954136542353 101220321220001