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122121141 = 3193321059
BaseRepresentation
bin1110100011101…
…10101110110101
322111210101201020
413101312232311
5222230334031
620041251353
73012004212
oct721665665
9274711636
10122121141
1162a3046a
1234a93b59
131c3ba53c
141230cb09
15aac4096
hex7476bb5

122121141 has 8 divisors (see below), whose sum is σ = 162920160. Its totient is φ = 81368112.

The previous prime is 122121119. The next prime is 122121187. The reversal of 122121141 is 141121221.

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

It is not a de Polignac number, because 122121141 - 211 = 122119093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122121141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121541) by changing a digit.

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, 4731 + ... + 16328.

It is an arithmetic number, because the mean of its divisors is an integer number (20365020).

Almost surely, 2122121141 is an apocalyptic number.

It is an amenable number.

122121141 is a deficient number, since it is larger than the sum of its proper divisors (40799019).

122121141 is a wasteful number, since it uses less digits than its factorization.

122121141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22995.

The product of its digits is 32, while the sum is 15.

The square root of 122121141 is about 11050.8434519723. The cubic root of 122121141 is about 496.1316705689.

Adding to 122121141 its reverse (141121221), we get a palindrome (263242362).

The spelling of 122121141 in words is "one hundred twenty-two million, one hundred twenty-one thousand, one hundred forty-one".

Divisors: 1 3 1933 5799 21059 63177 40707047 122121141