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122204312011 = 2331171394547
BaseRepresentation
bin111000111001111110…
…0011101000111001011
3102200102121222021010001
41301303330131013023
54000233300441021
6132050114303431
711554223341015
oct1616374350713
9380377867101
10122204312011
114791016a391
121b825b87b77
13b6a6a985c2
145cb3dc71b5
1532a3775091
hex1c73f1d1cb

122204312011 has 8 divisors (see below), whose sum is σ = 131631012864. Its totient is φ = 113120400360.

The previous prime is 122204311981. The next prime is 122204312017. The reversal of 122204312011 is 110213402221.

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 122204312011 - 29 = 122204311499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122204312011.

It is not an unprimeable number, because it can be changed into a prime (122204312017) 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, 85696561 + ... + 85697986.

It is an arithmetic number, because the mean of its divisors is an integer number (16453876608).

Almost surely, 2122204312011 is an apocalyptic number.

122204312011 is a deficient number, since it is larger than the sum of its proper divisors (9426700853).

122204312011 is a wasteful number, since it uses less digits than its factorization.

122204312011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171394601.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122204312011 its reverse (110213402221), we get a palindrome (232417714232).

The spelling of 122204312011 in words is "one hundred twenty-two billion, two hundred four million, three hundred twelve thousand, eleven".

Divisors: 1 23 31 713 171394547 3942074581 5313230957 122204312011