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2021201020210 = 253117387374993
BaseRepresentation
bin11101011010011000111…
…110000000010100110010
321011020001222022021012211
4131122120332000110302
5231103404430121320
64144305452242334
7266012150126431
oct35323076002462
97136058267184
102021201020210
1170a206313099
122878801703aa
131187a19cc948
146db8048d118
15378993d655a
hex1d698f80532

2021201020210 has 32 divisors (see below), whose sum is σ = 3755747907072. Its totient is φ = 782353309440.

The previous prime is 2021201020199. The next prime is 2021201020211. The reversal of 2021201020210 is 120201021202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2021201020211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5202474 + ... + 5577466.

It is an arithmetic number, because the mean of its divisors is an integer number (117367122096).

Almost surely, 22021201020210 is an apocalyptic number.

2021201020210 is a deficient number, since it is larger than the sum of its proper divisors (1734546886862).

2021201020210 is a wasteful number, since it uses less digits than its factorization.

2021201020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392418.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2021201020210 its reverse (120201021202), we get a palindrome (2141402041412).

The spelling of 2021201020210 in words is "two trillion, twenty-one billion, two hundred one million, twenty thousand, two hundred ten".

Divisors: 1 2 5 10 31 62 155 310 17387 34774 86935 173870 374993 538997 749986 1077994 1874965 2694985 3749930 5389970 11624783 23249566 58123915 116247830 6520003291 13040006582 32600016455 65200032910 202120102021 404240204042 1010600510105 2021201020210