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210022020101 = 617361794109
BaseRepresentation
bin1100001110011001001…
…0011011010000000101
3202002002210111001112002
43003212102123100011
511420111114120401
6240252140435045
721113353500335
oct3034622332005
9662083431462
10210022020101
1181084a56243
1234853b48a85
1316a6074939a
14a2451370c5
1556e3231a6b
hex30e649b405

210022020101 has 8 divisors (see below), whose sum is σ = 210422807640. Its totient is φ = 209621429248.

The previous prime is 210022020079. The next prime is 210022020107. The reversal of 210022020101 is 101020220012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 67417603201 + 142604416900 = 259649^2 + 377630^2 .

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-210022020101 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 (210022020107) 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, 2184635 + ... + 2278743.

It is an arithmetic number, because the mean of its divisors is an integer number (26302850955).

Almost surely, 2210022020101 is an apocalyptic number.

It is an amenable number.

210022020101 is a deficient number, since it is larger than the sum of its proper divisors (400787539).

210022020101 is an equidigital number, since it uses as much as digits as its factorization.

210022020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98343.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210022020101 its reverse (101020220012), we get a palindrome (311042240113).

The spelling of 210022020101 in words is "two hundred ten billion, twenty-two million, twenty thousand, one hundred one".

Divisors: 1 617 3617 94109 2231689 58065253 340392253 210022020101