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2122221201213 = 34715051214193
BaseRepresentation
bin11110111000011110001…
…111011010011100111101
321111212211020121011201010
4132320132033122130331
5234232302111414323
64302533541305433
7306216422400531
oct36703617323475
97455736534633
102122221201213
117490355a6293
122a3373705279
13125180994189
1474a04bd1bc1
153a30ce8bc93
hex1ee1e3da73d

2122221201213 has 8 divisors (see below), whose sum is σ = 2889833125248. Its totient is φ = 1384711705664.

The previous prime is 2122221201187. The next prime is 2122221201229. The reversal of 2122221201213 is 3121021222212.

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 2122221201213 - 214 = 2122221184829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2122221201213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122221201283) 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, 7525606956 + ... + 7525607237.

It is an arithmetic number, because the mean of its divisors is an integer number (361229140656).

Almost surely, 22122221201213 is an apocalyptic number.

It is an amenable number.

2122221201213 is a deficient number, since it is larger than the sum of its proper divisors (767611924035).

2122221201213 is a wasteful number, since it uses less digits than its factorization.

2122221201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15051214243.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2122221201213 its reverse (3121021222212), we get a palindrome (5243242423425).

The spelling of 2122221201213 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred one thousand, two hundred thirteen".

Divisors: 1 3 47 141 15051214193 45153642579 707407067071 2122221201213