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12211202102210 = 251221120210221
BaseRepresentation
bin1011000110110010010001…
…0111010001001111000010
31121020101020200002112122022
42301230210113101033002
53100032020214232320
641545425424041442
72400141654163436
oct261544427211702
947211220075568
1012211202102210
113988818272211
121452742a63282
136a76857784b7
1430304d73c9c6
15162994a56325
hexb1b245d13c2

12211202102210 has 8 divisors (see below), whose sum is σ = 21980163783996. Its totient is φ = 4884480840880.

The previous prime is 12211202102207. The next prime is 12211202102227. The reversal of 12211202102210 is 1220120211221.

It can be written as a sum of positive squares in 2 ways, for example, as 11595584542441 + 615617559769 = 3405229^2 + 784613^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×122112021022103 (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610560105101 + ... + 610560105120.

Almost surely, 212211202102210 is an apocalyptic number.

12211202102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211202102210 is a deficient number, since it is larger than the sum of its proper divisors (9768961681786).

12211202102210 is a wasteful number, since it uses less digits than its factorization.

12211202102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221120210228.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12211202102210 its reverse (1220120211221), we get a palindrome (13431322313431).

The spelling of 12211202102210 in words is "twelve trillion, two hundred eleven billion, two hundred two million, one hundred two thousand, two hundred ten".

Divisors: 1 2 5 10 1221120210221 2442240420442 6105601051105 12211202102210