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210122111010101 = 260995478435887
BaseRepresentation
bin101111110001101011011101…
…110010010100010100110101
31000112222110220012021100100112
4233301223131302110110311
5210020120040404310401
62022520433141152405
762154551535305663
oct5761533562242465
91015873805240315
10210122111010101
1160a5131787a634
121b6970a59bb705
139032578a75b64
1439c5d705adc33
151945b594773bb
hexbf1addc94535

210122111010101 has 8 divisors (see below), whose sum is σ = 210224691008640. Its totient is φ = 210019547907648.

The previous prime is 210122111010059. The next prime is 210122111010137. The reversal of 210122111010101 is 101010111221012.

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-210122111010101 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 (210122111010001) 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, 20690180 + ... + 29126066.

It is an arithmetic number, because the mean of its divisors is an integer number (26278086376080).

Almost surely, 2210122111010101 is an apocalyptic number.

It is an amenable number.

210122111010101 is a deficient number, since it is larger than the sum of its proper divisors (102579998539).

210122111010101 is an equidigital number, since it uses as much as digits as its factorization.

210122111010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8448043.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 210122111010101 its reverse (101010111221012), we get a palindrome (311132222231113).

The spelling of 210122111010101 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred eleven million, ten thousand, one hundred one".

Divisors: 1 2609 9547 8435887 24908123 22009229183 80537413189 210122111010101