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121210210222 = 2173565006183
BaseRepresentation
bin111000011100010110…
…0010000011110101110
3102120212100101122211021
41300320230100132232
53441214303211342
6131403323244354
711520462534043
oct1607054203656
9376770348737
10121210210222
1147450004a62
121b5a90796ba
13b578b44caa
145c1bd731ca
15324635b567
hex1c38b107ae

121210210222 has 8 divisors (see below), whose sum is σ = 192510333936. Its totient is φ = 57040098912.

The previous prime is 121210210217. The next prime is 121210210229. The reversal of 121210210222 is 222012012121.

It is a happy number.

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

It is a super-2 number, since 2×1212102102222 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121210210196 and 121210210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210210229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782503058 + ... + 1782503125.

It is an arithmetic number, because the mean of its divisors is an integer number (24063791742).

Almost surely, 2121210210222 is an apocalyptic number.

121210210222 is a deficient number, since it is larger than the sum of its proper divisors (71300123714).

121210210222 is a wasteful number, since it uses less digits than its factorization.

121210210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565006202.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121210210222 its reverse (222012012121), we get a palindrome (343222222343).

The spelling of 121210210222 in words is "one hundred twenty-one billion, two hundred ten million, two hundred ten thousand, two hundred twenty-two".

Divisors: 1 2 17 34 3565006183 7130012366 60605105111 121210210222