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2020212000221 = 17815691456877
BaseRepresentation
bin11101011001011110000…
…001001100010111011101
321011010112001021211211212
4131121132001030113131
5231044343233001341
64144023402154205
7265645510446302
oct35313601142735
97133461254755
102020212000221
117098490097a8
12287644ab2965
13118674b3840c
146dac8d9d0a9
153783c6735eb
hex1d65e04c5dd

2020212000221 has 8 divisors (see below), whose sum is σ = 2139075692280. Its totient is φ = 1901351385088.

The previous prime is 2020212000217. The next prime is 2020212000223. The reversal of 2020212000221 is 1220002120202.

It can be written as a sum of positive squares in 4 ways, for example, as 615734596 + 2019596265625 = 24814^2 + 1421125^2 .

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 2020212000221 - 22 = 2020212000217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020212000196 and 2020212000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020212000223) 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, 658235 + ... + 2115111.

It is an arithmetic number, because the mean of its divisors is an integer number (267384461535).

Almost surely, 22020212000221 is an apocalyptic number.

It is an amenable number.

2020212000221 is a deficient number, since it is larger than the sum of its proper divisors (118863692059).

2020212000221 is a wasteful number, since it uses less digits than its factorization.

2020212000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538463.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2020212000221 its reverse (1220002120202), we get a palindrome (3240214120423).

The spelling of 2020212000221 in words is "two trillion, twenty billion, two hundred twelve million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 17 81569 1386673 1456877 24766909 118836000013 2020212000221