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2021221201010 = 251185369215239
BaseRepresentation
bin11101011010011010001…
…010111111010001110010
321011020010101021120001212
4131122122022333101302
5231103430111413020
64144311453000122
7266012513510534
oct35323212772162
97136111246055
102021221201010
1170a216747240
12287886a83042
131187a5c4744b
146db83023854
153789b070cc5
hex1d69a2bf472

2021221201010 has 32 divisors (see below), whose sum is σ = 3969008380800. Its totient is φ = 734977503360.

The previous prime is 2021221201001. The next prime is 2021221201061. The reversal of 2021221201010 is 101021221202.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9282971 + ... + 9498209.

It is an arithmetic number, because the mean of its divisors is an integer number (124031511900).

Almost surely, 22021221201010 is an apocalyptic number.

2021221201010 is a deficient number, since it is larger than the sum of its proper divisors (1947787179790).

2021221201010 is a wasteful number, since it uses less digits than its factorization.

2021221201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300626.

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

Adding to 2021221201010 its reverse (101021221202), we get a palindrome (2122242422212).

The spelling of 2021221201010 in words is "two trillion, twenty-one billion, two hundred twenty-one million, two hundred one thousand, ten".

Divisors: 1 2 5 10 11 22 55 110 85369 170738 215239 426845 430478 853690 939059 1076195 1878118 2152390 2367629 4695295 4735258 9390590 11838145 23676290 18374738191 36749476382 91873690955 183747381910 202122120101 404244240202 1010610600505 2021221201010