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122121322310111 = 2938377109729267
BaseRepresentation
bin11011110001000110010110…
…000010010010100111011111
3121000101200110220221210212112
4123301012112002102213133
5112001313432002410421
61111421432212024235
734502655132255155
oct3361062602224737
9530350426853775
10122121322310111
1135a033a8825293
1211843b1b90207b
13531acb6ac5107
1422229bc7133d5
15e1b9c873445b
hex6f11960929df

122121322310111 has 8 divisors (see below), whose sum is σ = 126335695419120. Its totient is φ = 117907168736448.

The previous prime is 122121322310089. The next prime is 122121322310131. The reversal of 122121322310111 is 111013223121221.

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 122121322310111 - 214 = 122121322293727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121322310131) 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, 53751701 + ... + 55977566.

It is an arithmetic number, because the mean of its divisors is an integer number (15791961927390).

Almost surely, 2122121322310111 is an apocalyptic number.

122121322310111 is a deficient number, since it is larger than the sum of its proper divisors (4214373109009).

122121322310111 is a wasteful number, since it uses less digits than its factorization.

122121322310111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109767673.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 122121322310111 its reverse (111013223121221), we get a palindrome (233134545431332).

The spelling of 122121322310111 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, three hundred twenty-two million, three hundred ten thousand, one hundred eleven".

Divisors: 1 29 38377 1112933 109729267 3182148743 4211080079659 122121322310111