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2020210012121 = 71075174952121
BaseRepresentation
bin11101011001011101111…
…001100110111111011001
321011010111220112211200112
4131121131321212333121
5231044342230341441
64144023251414105
7265645454526140
oct35313571467731
97133456484615
102020210012121
11709847981044
122876442b4335
131186745c0522
146dac8a02757
153783c3ce4eb
hex1d65de66fd9

2020210012121 has 16 divisors (see below), whose sum is σ = 2330478864000. Its totient is φ = 1715359263360.

The previous prime is 2020210012111. The next prime is 2020210012151. The reversal of 2020210012121 is 1212100120202.

It is a cyclic number.

It is not a de Polignac number, because 2020210012121 - 210 = 2020210011097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2020210012096 and 2020210012105.

It is not an unprimeable number, because it can be changed into a prime (2020210012111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38733941 + ... + 38786061.

It is an arithmetic number, because the mean of its divisors is an integer number (145654929000).

Almost surely, 22020210012121 is an apocalyptic number.

It is an amenable number.

2020210012121 is a deficient number, since it is larger than the sum of its proper divisors (310268851879).

2020210012121 is a wasteful number, since it uses less digits than its factorization.

2020210012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103984.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2020210012121 its reverse (1212100120202), we get a palindrome (3232310132323).

The spelling of 2020210012121 in words is "two trillion, twenty billion, two hundred ten million, twelve thousand, one hundred twenty-one".

Divisors: 1 7 107 749 51749 52121 362243 364847 5537143 5576947 38760001 39038629 2697209629 18880467403 288601430303 2020210012121