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210220102210121 = 2011451392315849
BaseRepresentation
bin101111110011000110101110…
…100001000101001001001001
31000120022211211101000002001222
4233303012232201011021021
5210023221232131210441
62023033440504451425
762164621050621533
oct5763065641051111
91016284741002058
10210220102210121
1160a899322a8563
121b6b2092a79b75
13903b894349953
1439ca9c8924853
151948492161d4b
hexbf31ae845249

210220102210121 has 8 divisors (see below), whose sum is σ = 210329387628000. Its totient is φ = 210110821518240.

The previous prime is 210220102210103. The next prime is 210220102210163. The reversal of 210220102210121 is 121012201022012.

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-210220102210121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210220102210121.

It is not an unprimeable number, because it can be changed into a prime (210220102210621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89616605 + ... + 91932453.

It is an arithmetic number, because the mean of its divisors is an integer number (26291173453500).

Almost surely, 2210220102210121 is an apocalyptic number.

It is an amenable number.

210220102210121 is a deficient number, since it is larger than the sum of its proper divisors (109285417879).

210220102210121 is a wasteful number, since it uses less digits than its factorization.

210220102210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362999.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210220102210121 its reverse (121012201022012), we get a palindrome (331232303232133).

The spelling of 210220102210121 in words is "two hundred ten trillion, two hundred twenty billion, one hundred two million, two hundred ten thousand, one hundred twenty-one".

Divisors: 1 2011 45139 2315849 90774529 4657172339 104535108011 210220102210121