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2210001210121 = 4781281578503
BaseRepresentation
bin100000001010001110010…
…101100100101100001001
321211021101210011122120011
4200022032111210230021
5242202040302210441
64411132135431521
7315444614224045
oct40121625445411
97737353148504
102210001210121
117822900831a1
122b8390b255a1
1313052c8a5753
1478d70d2b025
153c74949d581
hex2028e564b09

2210001210121 has 8 divisors (see below), whose sum is σ = 2257054182144. Its totient is φ = 2162949557760.

The previous prime is 2210001210113. The next prime is 2210001210133. The reversal of 2210001210121 is 1210121000122.

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

It is a cyclic number.

It is not a de Polignac number, because 2210001210121 - 23 = 2210001210113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2210001210191) 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, 3530956 + ... + 4109458.

It is an arithmetic number, because the mean of its divisors is an integer number (282131772768).

Almost surely, 22210001210121 is an apocalyptic number.

It is an amenable number.

2210001210121 is a deficient number, since it is larger than the sum of its proper divisors (47052972023).

2210001210121 is an equidigital number, since it uses as much as digits as its factorization.

2210001210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659831.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2210001210121 its reverse (1210121000122), we get a palindrome (3420122210243).

The spelling of 2210001210121 in words is "two trillion, two hundred ten billion, one million, two hundred ten thousand, one hundred twenty-one".

Divisors: 1 47 81281 578503 3820207 27189641 47021302343 2210001210121