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101001212010101 = 1321533608603809
BaseRepresentation
bin10110111101110000101101…
…010111010001111001110101
3111020121121210010100110001202
4112331300231113101321311
5101214300440233310401
6554451152150502245
730163045121620364
oct2675605527217165
9436547703313052
10101001212010101
112a2004120a1207
12b3b2865664985
1344484b154c710
141ad26b01d37db
15ba241764506b
hex5bdc2d5d1e75

101001212010101 has 8 divisors (see below), whose sum is σ = 108821056494360. Its totient is φ = 93188584737792.

The previous prime is 101001212010059. The next prime is 101001212010107. The reversal of 101001212010101 is 101010212100101.

It can be written as a sum of positive squares in 4 ways, for example, as 22328129476 + 100978883880625 = 149426^2 + 10048825^2 .

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-101001212010101 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 (101001212010107) 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, 1804273916 + ... + 1804329893.

It is an arithmetic number, because the mean of its divisors is an integer number (13602632061795).

Almost surely, 2101001212010101 is an apocalyptic number.

It is an amenable number.

101001212010101 is a deficient number, since it is larger than the sum of its proper divisors (7819844484259).

101001212010101 is a wasteful number, since it uses less digits than its factorization.

101001212010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608605975.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101001212010101 its reverse (101010212100101), we get a palindrome (202011424110202).

The spelling of 101001212010101 in words is "one hundred one trillion, one billion, two hundred twelve million, ten thousand, one hundred one".

Divisors: 1 13 2153 27989 3608603809 46911849517 7769324000777 101001212010101