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2121200012202 = 231797812126171
BaseRepresentation
bin11110110111100001010…
…111111000101110101010
321111210012002001101201220
4132313201113320232222
5234223204200342302
64302244341522510
7306152212416225
oct36674127705652
97453162041656
102121200012202
1174866111a927
122a3129713436
1312504a24861b
147494932a5bc
153a29d4c24bc
hex1ede15f8baa

2121200012202 has 32 divisors (see below), whose sum is σ = 4492414332864. Its totient is φ = 665406163200.

The previous prime is 2121200012189. The next prime is 2121200012207. The reversal of 2121200012202 is 2022100021212.

It is not an unprimeable number, because it can be changed into a prime (2121200012207) 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, 65424 + ... + 2060747.

It is an arithmetic number, because the mean of its divisors is an integer number (140387947902).

Almost surely, 22121200012202 is an apocalyptic number.

2121200012202 is an abundant number, since it is smaller than the sum of its proper divisors (2371214320662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121200012202 is a wasteful number, since it uses less digits than its factorization.

2121200012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135974.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2121200012202 its reverse (2022100021212), we get a palindrome (4143300033414).

The spelling of 2121200012202 in words is "two trillion, one hundred twenty-one billion, two hundred million, twelve thousand, two hundred two".

Divisors: 1 2 3 6 17 34 51 102 9781 19562 29343 58686 166277 332554 498831 997662 2126171 4252342 6378513 12757026 36144907 72289814 108434721 216869442 20796078551 41592157102 62388235653 124776471306 353533335367 707066670734 1060600006101 2121200012202