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121022135 = 5131861879
BaseRepresentation
bin1110011011010…
…10011010110111
322102201120011022
413031222122313
5221440202020
620001531355
72666446133
oct715523267
9272646138
10121022135
116234a7a3
1234643b5b
131c0c4240
14121043c3
15a958625
hex736a6b7

121022135 has 8 divisors (see below), whose sum is σ = 156397920. Its totient is φ = 89370144.

The previous prime is 121022129. The next prime is 121022141. The reversal of 121022135 is 531220121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121022129) and next prime (121022141).

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 121022135 - 210 = 121021111 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930875 + ... + 931004.

It is an arithmetic number, because the mean of its divisors is an integer number (19549740).

Almost surely, 2121022135 is an apocalyptic number.

121022135 is a deficient number, since it is larger than the sum of its proper divisors (35375785).

121022135 is a wasteful number, since it uses less digits than its factorization.

121022135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861897.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121022135 is about 11001.0060903537. The cubic root of 121022135 is about 494.6389027189.

Adding to 121022135 its reverse (531220121), we get a palindrome (652242256).

The spelling of 121022135 in words is "one hundred twenty-one million, twenty-two thousand, one hundred thirty-five".

Divisors: 1 5 13 65 1861879 9309395 24204427 121022135